Need help just broke another 7.5 Its time to change. - S-10 Forum
 
LinkBack Thread Tools
post #1 of 47 Old 09-17-2012, 07:22 PM Thread Starter
Registered User
 
95s10&ls16speed's Avatar
 
Join Date: Dec 2008
Posts: 92

User is: 95s10&ls16speed is offline
Need help just broke another 7.5 Its time to change.

Ok guys I need some info again I just broke my third 7.5 rearend this weekend 1 torsen unit 1 axle and this weekend I got a ring gear and pinion. Ive been on here tring to see what everybody else is swapping to, some is going to a 9" some a 8.8 and some a 8.5 I dont want to go to a 9" I think its a little over kill for my set up I found a 99 S10 ZR2 4wd today at a local junk yard with the disc brakes and 3.42 gears It looks like the 8.5 rear end to me will this rear end hold up alot better than the 7.5 if I put a tru trac in it, are the axles 30 spline and if it is the 8.5 is all the internal parts the same as the 8.5 in the full size trucks, are they wider than the stock 7.5 axle flange to axle flange and also the spring perches I know this is alot of questions but I can get the ZR2 S10 rearend for 150.00.


LS2 Extreme Build Is Complete
2002 Black Extended Cab Step Side S10 Extreme
6.0 LS2 Mahle Pistons 6.125 Callies Comp Star Rods Texas Speed MS3 Cam Stage 3 CNC Ported Patriot 243 Heads Fast 90mm Intake and Fast 90mm Throttle Body Nitrous Outlet 90mm nitrous system

Stage 3 4L65E Yank 3400 Lock Up Converter.
Best 1/8 mile NA 7.15 95mph 1.55 60ft
New Best 1/8 mile NA 6.89 99mph 1.42 60ft 2-12-12
Best 1/8 mile 125 shot 6.94 103mph 1.62 60ft
95s10&ls16speed is offline  
Sponsored Links
Advertisement
 
post #2 of 47 Old 09-17-2012, 07:29 PM
Call me Mario, Princess
 
AceHaag's Avatar
 
Join Date: Aug 2006
Location: Elk River, Minnesota
Age: 34
Posts: 2,664

User is: AceHaag is offline
Re: Need help just broke another 7.5 Its time to change.

zr2 rear is way to wide and if it is a zr2 rear it's 3:73 gears.

Mike
my truck
New direction --->Time to get High

2001 s10 ext cab 6.0 243 heads, ls2 cam, nnbs truck intake, 87mm tb, 4l60e, 241c, dana 44's front and rear, 4.30 gears 35" m/t Baja claws.
AceHaag is offline  
post #3 of 47 Old 09-17-2012, 07:46 PM
drives a LSX zr2
 
parks450's Avatar
 
Join Date: May 2010
Location: Alpena, michigan
Age: 26
Posts: 1,073

User is: parks450 is offline
Re: Need help just broke another 7.5 Its time to change.

I'd do a ford 8.8
parks450 is offline  
post #4 of 47 Old 09-17-2012, 07:54 PM
Registered User
 
Performin Norman's Avatar
 
Join Date: Jun 2005
Age: 51
Posts: 393

User is: Performin Norman is offline
Re: Need help just broke another 7.5 Its time to change.

Maybe you guys can clear this up for me. My buddy, who owns Antivenom, in FL, said that the ZR2 is the way to go and would allow me to run Corvette offset wheels without spacers. Seems that some think it is too wide.

.02 please.

LS6/T56 swap is complete and I'm just enjoying the time behind the wheel.

http://performin.homeip.net/Normspage/
Performin Norman is offline  
post #5 of 47 Old 09-17-2012, 08:44 PM
Good Bye SonomaST
 
91sonomast's Avatar
 
Join Date: Sep 2005
Location: Murray, KY
Age: 31
Posts: 6,970

User is: 91sonomast is offline
Send a message via Yahoo to 91sonomast
Re: Need help just broke another 7.5 Its time to change.

Regular 4wd rearend I believe lets you run Vette wheels without a spacer.
As for OP, a ZR2 is gonna be SUPER WIDE!! I'd go with an 8.8 as well

1998 Dodge Dakota, 2wd ECSB, 318, M1 2bbl intake, 52mm TB, Taurus fan, Ford 19# 4-hole injectors, Mopar Performance PCM, MPP mid-length headers and full exhaust, Hooker Aerochamber, DJM 3/5 drop. Black with custom clear coat flake, dents, and scratches, But it's got some clean ass wheels.
1991 SonomaST, WAS SOLD, recently reacquired MUAHAHAHAHAHA

Quote:
Originally Posted by 99 BUCKET View Post
I will get off at some point.
91sonomast is offline  
post #6 of 47 Old 09-17-2012, 08:45 PM Thread Starter
Registered User
 
95s10&ls16speed's Avatar
 
Join Date: Dec 2008
Posts: 92

User is: 95s10&ls16speed is offline
Re: Need help just broke another 7.5 Its time to change.

Yea I just measured the ZR2 rearend and my stock 7.5 the ZR2 measured 59 1/4" flange to flange and the stock 7.5 measured 54 1/4" flange to flange. so 5" difference so it would have to be narrowed for sure if i use it. Is there a 8.8 that will bolt right in as for as flange to flange width and spring perch width. And how well will the stock 31 spline axles, gears and posi unit hold up on the 8.8.

LS2 Extreme Build Is Complete
2002 Black Extended Cab Step Side S10 Extreme
6.0 LS2 Mahle Pistons 6.125 Callies Comp Star Rods Texas Speed MS3 Cam Stage 3 CNC Ported Patriot 243 Heads Fast 90mm Intake and Fast 90mm Throttle Body Nitrous Outlet 90mm nitrous system

Stage 3 4L65E Yank 3400 Lock Up Converter.
Best 1/8 mile NA 7.15 95mph 1.55 60ft
New Best 1/8 mile NA 6.89 99mph 1.42 60ft 2-12-12
Best 1/8 mile 125 shot 6.94 103mph 1.62 60ft
95s10&ls16speed is offline  
post #7 of 47 Old 09-17-2012, 08:48 PM Thread Starter
Registered User
 
95s10&ls16speed's Avatar
 
Join Date: Dec 2008
Posts: 92

User is: 95s10&ls16speed is offline
Re: Need help just broke another 7.5 Its time to change.

How exspensive is it to have the 8.5 narrowed and can the axles be cut off and resplined are would I have to buy new axles if I have it narrowed.

LS2 Extreme Build Is Complete
2002 Black Extended Cab Step Side S10 Extreme
6.0 LS2 Mahle Pistons 6.125 Callies Comp Star Rods Texas Speed MS3 Cam Stage 3 CNC Ported Patriot 243 Heads Fast 90mm Intake and Fast 90mm Throttle Body Nitrous Outlet 90mm nitrous system

Stage 3 4L65E Yank 3400 Lock Up Converter.
Best 1/8 mile NA 7.15 95mph 1.55 60ft
New Best 1/8 mile NA 6.89 99mph 1.42 60ft 2-12-12
Best 1/8 mile 125 shot 6.94 103mph 1.62 60ft
95s10&ls16speed is offline  
post #8 of 47 Old 09-17-2012, 09:17 PM
i need a paint job
 
s106banger's Avatar
 
Join Date: May 2006
Location: Medina/UNOH
Posts: 3,680

User is: s106banger is offline
Send a message via AIM to s106banger
Re: Need help just broke another 7.5 Its time to change.

you broke them making 1.4-1.5 60ft?

1997 S10 266ci V6-turbo. 4l80e. 8.8. 23lbs.
10.93@122
526rwhp 531ftlbs on a mustang dyno @20lbs.
build thread-http://www.s10forum.com/forum/f11/no...r-more-481754/
2002 S10 2.2-DD 80% ZQ8 clone "TuTu Powa" w/efans. 98rwhp 111ftlbs!
s106banger is offline  
post #9 of 47 Old 09-17-2012, 09:20 PM
Registered User
 
2007pontiacg5's Avatar
 
Join Date: Dec 2010
Location: Lawrence, KS
Age: 26
Posts: 409

User is: 2007pontiacg5 is offline
Re: Need help just broke another 7.5 Its time to change.

Aren't 2.5" spacers normal with vette wheels?
2007pontiacg5 is offline  
post #10 of 47 Old 09-17-2012, 09:24 PM
Sold :'(
 
s10xtremist's Avatar
 
Join Date: Jun 2006
Location: State Capitol Raceway, Louisiana
Age: 34
Posts: 7,446

User is: s10xtremist is offline
Garage
Re: Need help just broke another 7.5 Its time to change.

The regular 4WD rear is about 4" wider than the 2WD rear and the ZR2 rear is about 4" wider than the regular 4WD, so about 8" wider than the 2WD rear. If you can find it, there is a 2WD 8.5" rear. It came in the 5 speed Blazers. Personally, I'd swap to an 8.8 and be done with it.

Getting better with every failure



Project threads:
Punching bag
Unicorn XJ
s10xtremist is offline  
post #11 of 47 Old 09-17-2012, 09:37 PM
Registered User
 
2007pontiacg5's Avatar
 
Join Date: Dec 2010
Location: Lawrence, KS
Age: 26
Posts: 409

User is: 2007pontiacg5 is offline
Re: Need help just broke another 7.5 Its time to change.

In that case I believe the OP has a regular 4wd rearend.

4x4's are 59", right? Would make sense as I know of guys running vette wheels on 4x4 1st gens with no spacers.
2007pontiacg5 is offline  
post #12 of 47 Old 09-17-2012, 09:49 PM
Registered User
 
2007pontiacg5's Avatar
 
Join Date: Dec 2010
Location: Lawrence, KS
Age: 26
Posts: 409

User is: 2007pontiacg5 is offline
Re: Need help just broke another 7.5 Its time to change.

Man I just checked car-part.com, there are at least 10 8.5's from 2wd blazers near me. Most with lockers and under $300 bucks!

Check it out,
pick a 2002
s10/15 Blazer
rear axle assembly (rwd)

The next page lets you pick the RPO code, 4x2 8 1/2 is even an option so you don't have to sort through the results!

Dang man, car-part is awesome. I never would have imagined they would have sorted the 8.5's from the 7.625's.
2007pontiacg5 is offline  
post #13 of 47 Old 09-17-2012, 09:59 PM Thread Starter
Registered User
 
95s10&ls16speed's Avatar
 
Join Date: Dec 2008
Posts: 92

User is: 95s10&ls16speed is offline
Re: Need help just broke another 7.5 Its time to change.

yep 1.42 60ft is the best it has ever had, this weekend when it broke it was probably like a 1.55 or so 60ft. Is the 2wd blazer 8.5 about the same with as the stock S10 or is it wider
I really would like to keep the gm rear end in it so my 2 sets of wheels will work.

LS2 Extreme Build Is Complete
2002 Black Extended Cab Step Side S10 Extreme
6.0 LS2 Mahle Pistons 6.125 Callies Comp Star Rods Texas Speed MS3 Cam Stage 3 CNC Ported Patriot 243 Heads Fast 90mm Intake and Fast 90mm Throttle Body Nitrous Outlet 90mm nitrous system

Stage 3 4L65E Yank 3400 Lock Up Converter.
Best 1/8 mile NA 7.15 95mph 1.55 60ft
New Best 1/8 mile NA 6.89 99mph 1.42 60ft 2-12-12
Best 1/8 mile 125 shot 6.94 103mph 1.62 60ft
95s10&ls16speed is offline  
post #14 of 47 Old 09-17-2012, 10:04 PM
i need a paint job
 
s106banger's Avatar
 
Join Date: May 2006
Location: Medina/UNOH
Posts: 3,680

User is: s106banger is offline
Send a message via AIM to s106banger
Re: Need help just broke another 7.5 Its time to change.

2wd blazer rear ends are the same width. direct swap. i just put a 2wd blazer 7.5 in my truck. even has discs.

1997 S10 266ci V6-turbo. 4l80e. 8.8. 23lbs.
10.93@122
526rwhp 531ftlbs on a mustang dyno @20lbs.
build thread-http://www.s10forum.com/forum/f11/no...r-more-481754/
2002 S10 2.2-DD 80% ZQ8 clone "TuTu Powa" w/efans. 98rwhp 111ftlbs!
s106banger is offline  
post #15 of 47 Old 09-17-2012, 10:18 PM Thread Starter
Registered User
 
95s10&ls16speed's Avatar
 
Join Date: Dec 2008
Posts: 92

User is: 95s10&ls16speed is offline
Re: Need help just broke another 7.5 Its time to change.

what about the 8.5 in the blazers are they the same width as the 2wd S10

LS2 Extreme Build Is Complete
2002 Black Extended Cab Step Side S10 Extreme
6.0 LS2 Mahle Pistons 6.125 Callies Comp Star Rods Texas Speed MS3 Cam Stage 3 CNC Ported Patriot 243 Heads Fast 90mm Intake and Fast 90mm Throttle Body Nitrous Outlet 90mm nitrous system

Stage 3 4L65E Yank 3400 Lock Up Converter.
Best 1/8 mile NA 7.15 95mph 1.55 60ft
New Best 1/8 mile NA 6.89 99mph 1.42 60ft 2-12-12
Best 1/8 mile 125 shot 6.94 103mph 1.62 60ft
95s10&ls16speed is offline  
post #16 of 47 Old 09-17-2012, 10:19 PM
i need a paint job
 
s106banger's Avatar
 
Join Date: May 2006
Location: Medina/UNOH
Posts: 3,680

User is: s106banger is offline
Send a message via AIM to s106banger
Re: Need help just broke another 7.5 Its time to change.

yes.

1997 S10 266ci V6-turbo. 4l80e. 8.8. 23lbs.
10.93@122
526rwhp 531ftlbs on a mustang dyno @20lbs.
build thread-http://www.s10forum.com/forum/f11/no...r-more-481754/
2002 S10 2.2-DD 80% ZQ8 clone "TuTu Powa" w/efans. 98rwhp 111ftlbs!
s106banger is offline  
post #17 of 47 Old 09-17-2012, 10:29 PM
Sold :'(
 
s10xtremist's Avatar
 
Join Date: Jun 2006
Location: State Capitol Raceway, Louisiana
Age: 34
Posts: 7,446

User is: s10xtremist is offline
Garage
Re: Need help just broke another 7.5 Its time to change.

Get the parking brake cables with it.

Getting better with every failure



Project threads:
Punching bag
Unicorn XJ
s10xtremist is offline  
post #18 of 47 Old 09-17-2012, 10:44 PM Thread Starter
Registered User
 
95s10&ls16speed's Avatar
 
Join Date: Dec 2008
Posts: 92

User is: 95s10&ls16speed is offline
Re: Need help just broke another 7.5 Its time to change.

Ok thanks I will check around in my area junk yards to see if i can find a 2wd blazer rear end about what year blazers do I need to look at.

LS2 Extreme Build Is Complete
2002 Black Extended Cab Step Side S10 Extreme
6.0 LS2 Mahle Pistons 6.125 Callies Comp Star Rods Texas Speed MS3 Cam Stage 3 CNC Ported Patriot 243 Heads Fast 90mm Intake and Fast 90mm Throttle Body Nitrous Outlet 90mm nitrous system

Stage 3 4L65E Yank 3400 Lock Up Converter.
Best 1/8 mile NA 7.15 95mph 1.55 60ft
New Best 1/8 mile NA 6.89 99mph 1.42 60ft 2-12-12
Best 1/8 mile 125 shot 6.94 103mph 1.62 60ft
95s10&ls16speed is offline  
post #19 of 47 Old 09-17-2012, 10:53 PM
i need a paint job
 
s106banger's Avatar
 
Join Date: May 2006
Location: Medina/UNOH
Posts: 3,680

User is: s106banger is offline
Send a message via AIM to s106banger
Re: Need help just broke another 7.5 Its time to change.

98+ 5 speeds? the newer the better chance there is it seems.

1997 S10 266ci V6-turbo. 4l80e. 8.8. 23lbs.
10.93@122
526rwhp 531ftlbs on a mustang dyno @20lbs.
build thread-http://www.s10forum.com/forum/f11/no...r-more-481754/
2002 S10 2.2-DD 80% ZQ8 clone "TuTu Powa" w/efans. 98rwhp 111ftlbs!
s106banger is offline  
post #20 of 47 Old 09-17-2012, 11:38 PM
The Animal
 
V893S10's Avatar
 
Join Date: Apr 2009
Location: Felton DE.
Age: 25
Posts: 516

User is: V893S10 is offline
Re: Need help just broke another 7.5 Its time to change.

I just swapped a 8.5 into my first gen. Very easy swap. They were in 98 - 05 i believe.

R.I.P. Jeremy Chad Hobbs
1/19/1990 - 8/27/2011
I Love You Brother

Magnacharged 93 Reg Cab LS1/T56 471RWHP/472RWTQ
Best time - 11.20 @ 123 mph w/ 1.64 60'

Build Thread....
http://www.s10forum.com/forum/f213/1...-build-417620/

Magnuson Install....
http://www.s10forum.com/forum/f213/m...thread-505486/
V893S10 is offline  
post #21 of 47 Old 09-17-2012, 11:43 PM
Good Bye SonomaST
 
91sonomast's Avatar
 
Join Date: Sep 2005
Location: Murray, KY
Age: 31
Posts: 6,970

User is: 91sonomast is offline
Send a message via Yahoo to 91sonomast
Re: Need help just broke another 7.5 Its time to change.

I think any 4.3 5speed from like 96+ had a 8.5, didn't matter whether Blazer or truck. As far as wheels with a 8.8 go, you can have the axle flanges drilled for 5x4.75 wheels.

1998 Dodge Dakota, 2wd ECSB, 318, M1 2bbl intake, 52mm TB, Taurus fan, Ford 19# 4-hole injectors, Mopar Performance PCM, MPP mid-length headers and full exhaust, Hooker Aerochamber, DJM 3/5 drop. Black with custom clear coat flake, dents, and scratches, But it's got some clean ass wheels.
1991 SonomaST, WAS SOLD, recently reacquired MUAHAHAHAHAHA

Quote:
Originally Posted by 99 BUCKET View Post
I will get off at some point.
91sonomast is offline  
post #22 of 47 Old 09-18-2012, 01:23 AM
Registered User
 
badmofo529's Avatar
 
Join Date: Nov 2010
Location: Flint, MI
Age: 24
Posts: 2,685

User is: badmofo529 is offline
Re: Need help just broke another 7.5 Its time to change.

Quote:
Originally Posted by 91sonomast View Post
I think any 4.3 5speed from like 96+ had a 8.5, didn't matter whether Blazer or truck. As far as wheels with a 8.8 go, you can have the axle flanges drilled for 5x4.75 wheels.
it was hit or miss on the trucks
badmofo529 is offline  
post #23 of 47 Old 09-18-2012, 01:47 AM
Good Bye SonomaST
 
91sonomast's Avatar
 
Join Date: Sep 2005
Location: Murray, KY
Age: 31
Posts: 6,970

User is: 91sonomast is offline
Send a message via Yahoo to 91sonomast
Re: Need help just broke another 7.5 Its time to change.

Quote:
Originally Posted by badmofo529 View Post
it was hit or miss on the trucks
Really? Everyone I've seen in the scrapyard had a 8.5. Maybe it's just a regional thing. When in Florida I saw the Xtreme Blazers everywhere(almost everyone 2001+) with the ZQ8 wheels, supposedly came factory on them. I NEVER saw them until I moved down there, up here they all had the Xtreme wheels. GM does some weird shit like that sometimes.

1998 Dodge Dakota, 2wd ECSB, 318, M1 2bbl intake, 52mm TB, Taurus fan, Ford 19# 4-hole injectors, Mopar Performance PCM, MPP mid-length headers and full exhaust, Hooker Aerochamber, DJM 3/5 drop. Black with custom clear coat flake, dents, and scratches, But it's got some clean ass wheels.
1991 SonomaST, WAS SOLD, recently reacquired MUAHAHAHAHAHA

Quote:
Originally Posted by 99 BUCKET View Post
I will get off at some point.
91sonomast is offline  
post #24 of 47 Old 09-18-2012, 07:36 AM Thread Starter
Registered User
 
95s10&ls16speed's Avatar
 
Join Date: Dec 2008
Posts: 92

User is: 95s10&ls16speed is offline
Re: Need help just broke another 7.5 Its time to change.

Thanks for your help guys, what spline are the axles in the 8.5 in the blazers and are the carrier and ring gears the same as the 8.5/8.625 in the full size trucks and if I'm not mistaken if it has a posi unit in it is the gov lock correct.

LS2 Extreme Build Is Complete
2002 Black Extended Cab Step Side S10 Extreme
6.0 LS2 Mahle Pistons 6.125 Callies Comp Star Rods Texas Speed MS3 Cam Stage 3 CNC Ported Patriot 243 Heads Fast 90mm Intake and Fast 90mm Throttle Body Nitrous Outlet 90mm nitrous system

Stage 3 4L65E Yank 3400 Lock Up Converter.
Best 1/8 mile NA 7.15 95mph 1.55 60ft
New Best 1/8 mile NA 6.89 99mph 1.42 60ft 2-12-12
Best 1/8 mile 125 shot 6.94 103mph 1.62 60ft
95s10&ls16speed is offline  
post #25 of 47 Old 09-18-2012, 08:14 AM
Need LSx swap.....
 
Kampz69's Avatar
 
Join Date: Feb 2002
Location: SW Chicago burbs
Age: 37
Posts: 4,297

User is: Kampz69 is offline
Send a message via AIM to Kampz69
Re: Need help just broke another 7.5 Its time to change.

just because they list it as a 8.5 on car-part.com doesnt mean they actually know what they are looking at...i went to a yard that claimed to have "a bunch" of 8.5s, and they were all 7.625s...morons...phone first

Nick
Currently Blazerless...but looking

Graphite Double Din bezel for sale, PM me!
OEM new Maroon plastic air dam for sale, PM me!

Quote:
Originally Posted by AVdime View Post
it was just an old factory with a bunch of whores
Kampz69 is offline  
post #26 of 47 Old 09-18-2012, 09:47 AM
Registered User
 
squeak's Avatar
 
Join Date: Feb 2005
Location: Jesup, GA
Age: 29
Posts: 530

User is: squeak is offline
Re: Need help just broke another 7.5 Its time to change.

Does the 8.5 require the drive shaft to be shortened? I've heard that it's about 2'' longer in the snout, but I don't know how accurate that info was.
squeak is offline  
post #27 of 47 Old 09-18-2012, 09:48 AM
Good Bye SonomaST
 
91sonomast's Avatar
 
Join Date: Sep 2005
Location: Murray, KY
Age: 31
Posts: 6,970

User is: 91sonomast is offline
Send a message via Yahoo to 91sonomast
Re: Need help just broke another 7.5 Its time to change.

Quote:
Originally Posted by 95s10&ls16speed View Post
Thanks for your help guys, what spline are the axles in the 8.5 in the blazers and are the carrier and ring gears the same as the 8.5/8.625 in the full size trucks and if I'm not mistaken if it has a posi unit in it is the gov lock correct.
I'm not sure what the spline count is, but yes I'm 99% sure it's basically a fs rear just narrowed. Do some research to verify my thoughts though.

1998 Dodge Dakota, 2wd ECSB, 318, M1 2bbl intake, 52mm TB, Taurus fan, Ford 19# 4-hole injectors, Mopar Performance PCM, MPP mid-length headers and full exhaust, Hooker Aerochamber, DJM 3/5 drop. Black with custom clear coat flake, dents, and scratches, But it's got some clean ass wheels.
1991 SonomaST, WAS SOLD, recently reacquired MUAHAHAHAHAHA

Quote:
Originally Posted by 99 BUCKET View Post
I will get off at some point.
91sonomast is offline  
post #28 of 47 Old 09-18-2012, 11:26 AM
LSX Jimmy
 
moon509's Avatar
 
Join Date: Jan 2002
Location: Bellingham, WA
Age: 38
Posts: 4,662

User is: moon509 is offline
Send a message via MSN to moon509
Re: Need help just broke another 7.5 Its time to change.

Quote:
Originally Posted by squeak View Post
Does the 8.5 require the drive shaft to be shortened? I've heard that it's about 2'' longer in the snout, but I don't know how accurate that info was.
the drive shaft will have to be shorted at least and inch or two.

2000 GMC Jimmy 2wd 2 door / LQ9, L92 heads, 224/230 cam and LS3 intake!
2006 Trailblazer SS
2000 Olds Bravada- SOLD
build thread <------<click there dyno'd 374/372
moon509 is offline  
post #29 of 47 Old 09-18-2012, 05:25 PM
i need a paint job
 
s106banger's Avatar
 
Join Date: May 2006
Location: Medina/UNOH
Posts: 3,680

User is: s106banger is offline
Send a message via AIM to s106banger
Re: Need help just broke another 7.5 Its time to change.

8.5's are 30 spline, and yes, the posi carrier would be the gov lock from the factory.

no idea if there interchangeable with full size stuff...

1997 S10 266ci V6-turbo. 4l80e. 8.8. 23lbs.
10.93@122
526rwhp 531ftlbs on a mustang dyno @20lbs.
build thread-http://www.s10forum.com/forum/f11/no...r-more-481754/
2002 S10 2.2-DD 80% ZQ8 clone "TuTu Powa" w/efans. 98rwhp 111ftlbs!
s106banger is offline  
post #30 of 47 Old 09-18-2012, 09:42 PM
Registered User
 
2007pontiacg5's Avatar
 
Join Date: Dec 2010
Location: Lawrence, KS
Age: 26
Posts: 409

User is: 2007pontiacg5 is offline
Re: Need help just broke another 7.5 Its time to change.

Quote:
Originally Posted by Kampz69 View Post
just because they list it as a 8.5 on car-part.com doesnt mean they actually know what they are looking at...i went to a yard that claimed to have "a bunch" of 8.5s, and they were all 7.625s...morons...phone first
Right on, I knew it was too good to be true. Thanks for the tip!
2007pontiacg5 is offline  
post #31 of 47 Old 09-18-2012, 09:54 PM
***1987 LSX S10***
 
SoLowXtreme's Avatar
 
Join Date: Jan 2003
Location: Irwin, PA
Age: 34
Posts: 2,818

User is: SoLowXtreme is offline
Send a message via AIM to SoLowXtreme
Re: Need help just broke another 7.5 Its time to change.

Quote:
Originally Posted by squeak View Post
Does the 8.5 require the drive shaft to be shortened? I've heard that it's about 2'' longer in the snout, but I don't know how accurate that info was.
its a direct bolt in...driveshaft doesn't need shortened
SoLowXtreme is offline  
post #32 of 47 Old 09-18-2012, 10:51 PM Thread Starter
Registered User
 
95s10&ls16speed's Avatar
 
Join Date: Dec 2008
Posts: 92

User is: 95s10&ls16speed is offline
Re: Need help just broke another 7.5 Its time to change.

A direct bolt in would be great all I would have to do is buy a good true trac and gears if it didnt come with 3.73 and it would be good to go, I know the gov locks are crap my brother broke 2 of those in less than 1000 miles with his supercharged LS1 5.7 in his 99 Silverado. I just found a 8.8 MOUNTAINEER EXPLORER AXLE 31 SPLINE 3.73 LIMITED SLIP they said it came out of a 96 to 01 mountaineer explorer and was 59 1/2 inchs from wheel flange to wheel flange It also has the disc brakes on it they also said something about it had axle flange uprades in the pictures it does look like the tubes are rusty at the flanges, he wants 299.00 for it plus shipping.

LS2 Extreme Build Is Complete
2002 Black Extended Cab Step Side S10 Extreme
6.0 LS2 Mahle Pistons 6.125 Callies Comp Star Rods Texas Speed MS3 Cam Stage 3 CNC Ported Patriot 243 Heads Fast 90mm Intake and Fast 90mm Throttle Body Nitrous Outlet 90mm nitrous system

Stage 3 4L65E Yank 3400 Lock Up Converter.
Best 1/8 mile NA 7.15 95mph 1.55 60ft
New Best 1/8 mile NA 6.89 99mph 1.42 60ft 2-12-12
Best 1/8 mile 125 shot 6.94 103mph 1.62 60ft
95s10&ls16speed is offline  
post #33 of 47 Old 09-18-2012, 11:19 PM
Ls1 ftw
 
SLO RYDR's Avatar
 
Join Date: Mar 2003
Location: milwaukee
Age: 31
Posts: 164

User is: SLO RYDR is offline
Re: Need help just broke another 7.5 Its time to change.

I directly bolted up a 2001 2wd blazer 8.5. It has 30 spline axles and the internals are the same as the full size 8.625. I bought a larger pinion flange for a bigger u-joint, but the factory one seemed to be in the same place as the 7.5
I put a brand new gov lock in that I got for free and its already showing its weakness after less then 1000 miles. Buying a truetrac this winter

97 ZQ8 Sonoma RCSB - C5 front brakes - Caltracs - Astro hydroboost - blazer 8.625 dif - 4/5 drop
LS1 swapped - forged pistons/rods - Comp LSR cam - PRC stage 2.5 truck heads- Stainless Works long tubes - edelbrock pro flo xt intake - ls7 injectors - T56/ls7 clutch
SLO RYDR is offline  
post #34 of 47 Old 09-19-2012, 02:03 AM
Registered User
 
Lowloudnproud1's Avatar
 
Join Date: Jun 2010
Age: 26
Posts: 180

User is: Lowloudnproud1 is offline
Re: Need help just broke another 7.5 Its time to change.

Im getting a parts blazer this week with disc & posi 8.5/8.6 if your interested where are you located?
Lowloudnproud1 is offline  
post #35 of 47 Old 09-19-2012, 07:57 AM Thread Starter
Registered User
 
95s10&ls16speed's Avatar
 
Join Date: Dec 2008
Posts: 92

User is: 95s10&ls16speed is offline
Re: Need help just broke another 7.5 Its time to change.

Quote:
Originally Posted by Lowloudnproud1 View Post
Im getting a parts blazer this week with disc & posi 8.5/8.6 if your interested where are you located?

I live in the southeast part of MS below Hattiesburge and yea I maybe interested if the price is good and the shipping not to bad.

LS2 Extreme Build Is Complete
2002 Black Extended Cab Step Side S10 Extreme
6.0 LS2 Mahle Pistons 6.125 Callies Comp Star Rods Texas Speed MS3 Cam Stage 3 CNC Ported Patriot 243 Heads Fast 90mm Intake and Fast 90mm Throttle Body Nitrous Outlet 90mm nitrous system

Stage 3 4L65E Yank 3400 Lock Up Converter.
Best 1/8 mile NA 7.15 95mph 1.55 60ft
New Best 1/8 mile NA 6.89 99mph 1.42 60ft 2-12-12
Best 1/8 mile 125 shot 6.94 103mph 1.62 60ft
95s10&ls16speed is offline  
post #36 of 47 Old 09-19-2012, 08:34 AM
Registered User
 
squeak's Avatar
 
Join Date: Feb 2005
Location: Jesup, GA
Age: 29
Posts: 530

User is: squeak is offline
Re: Need help just broke another 7.5 Its time to change.

Quote:
Originally Posted by moon509 View Post
the drive shaft will have to be shorted at least and inch or two.

Quote:
Originally Posted by SoLowXtreme View Post
its a direct bolt in...driveshaft doesn't need shortened

AHHHH! Conflicting information! I don't know what to do!!!
squeak is offline  
post #37 of 47 Old 09-19-2012, 09:06 AM
Need LSx swap.....
 
Kampz69's Avatar
 
Join Date: Feb 2002
Location: SW Chicago burbs
Age: 37
Posts: 4,297

User is: Kampz69 is offline
Send a message via AIM to Kampz69
Re: Need help just broke another 7.5 Its time to change.

^ lol

Nick
Currently Blazerless...but looking

Graphite Double Din bezel for sale, PM me!
OEM new Maroon plastic air dam for sale, PM me!

Quote:
Originally Posted by AVdime View Post
it was just an old factory with a bunch of whores
Kampz69 is offline  
post #38 of 47 Old 09-19-2012, 12:52 PM
Registered User
 
Iroc-10's Avatar
 
Join Date: Oct 2004
Location: A-Town, Ill side
Age: 45
Posts: 3,251

User is: Iroc-10 is offline
Re: Need help just broke another 7.5 Its time to change.

The 8.5" is a direct bolt in. I think moon is mistaken this time. Normally he is right on the money. I have sold more of these rear ends than most people have ever seen. I think I have had all 100 GM ever made. J/K

Nice 60' times!! How about some more info on your rear setup?

Spring of '16 Changes 2 stages:
6.0/Ported heads/Yank SS3600
Turbonetics TC78 & E85

1994 SS S-10 Project CorectionSS LS swap-Running!
http://www.s10forum.com/forum/f213/p...tionss-495456/

1988 S-10 W/ Iroc Package, Screamin' Yellow -SOLD!
Iroc-10 is offline  
post #39 of 47 Old 09-19-2012, 02:49 PM
Registered User
 
squeak's Avatar
 
Join Date: Feb 2005
Location: Jesup, GA
Age: 29
Posts: 530

User is: squeak is offline
Re: Need help just broke another 7.5 Its time to change.

Quote:
Originally Posted by Iroc-10 View Post
The 8.5" is a direct bolt in. I think moon is mistaken this time. Normally he is right on the money. I have sold more of these rear ends than most people have ever seen. I think I have had all 100 GM ever made. J/K

Nice 60' times!! How about some more info on your rear setup?
Thanks. This wasn't my thread, but I've been debating doing the swap for quite some time now and was going to hold off until I did the LS swap if the driveshaft needed any adjustments.
squeak is offline  
post #40 of 47 Old 09-19-2012, 06:33 PM Thread Starter
Registered User
 
95s10&ls16speed's Avatar
 
Join Date: Dec 2008
Posts: 92

User is: 95s10&ls16speed is offline
Re: Need help just broke another 7.5 Its time to change.

Quote:
Originally Posted by Iroc-10 View Post
The 8.5" is a direct bolt in. I think moon is mistaken this time. Normally he is right on the money. I have sold more of these rear ends than most people have ever seen. I think I have had all 100 GM ever made. J/K

Nice 60' times!! How about some more info on your rear setup?
Who is J/K or was you talking to me about the 60ft times I'm not up on all this short hand lol.

LS2 Extreme Build Is Complete
2002 Black Extended Cab Step Side S10 Extreme
6.0 LS2 Mahle Pistons 6.125 Callies Comp Star Rods Texas Speed MS3 Cam Stage 3 CNC Ported Patriot 243 Heads Fast 90mm Intake and Fast 90mm Throttle Body Nitrous Outlet 90mm nitrous system

Stage 3 4L65E Yank 3400 Lock Up Converter.
Best 1/8 mile NA 7.15 95mph 1.55 60ft
New Best 1/8 mile NA 6.89 99mph 1.42 60ft 2-12-12
Best 1/8 mile 125 shot 6.94 103mph 1.62 60ft
95s10&ls16speed is offline  
post #41 of 47 Old 09-19-2012, 06:51 PM
Registered User
 
soupn02sonoma's Avatar
 
Join Date: Jul 2011
Location: columbia MO.
Age: 30
Posts: 640

User is: soupn02sonoma is offline
Re: Need help just broke another 7.5 Its time to change.

j/k= just kidding

2000 rc/sb s10. back burner ls swap.
soupn02sonoma is offline  
post #42 of 47 Old 09-20-2012, 07:46 AM Thread Starter
Registered User
 
95s10&ls16speed's Avatar
 
Join Date: Dec 2008
Posts: 92

User is: 95s10&ls16speed is offline
Re: Need help just broke another 7.5 Its time to change.

Ok thanks The rear is a stock 7.625 10 bolt S10 rear end with GM Camaro 4.10 gears and Torsen unit, Stock 28 spline axles, Stock shocks on the rear with a set of home made cal-trac bars 325-50-15 M/T drag radials I do have a set of strange single adjustable shocks up front. And also only running 2 leafs on each side in the rear. Other than that its still like it came from GM. Thanks for your help Guys. I've already got a set of richmond 4.10 gears and a true-track posi unit for my 7.5 if I buy a set of moser axles and a rear support cover for it do you guys think it will hold up alot better?

LS2 Extreme Build Is Complete
2002 Black Extended Cab Step Side S10 Extreme
6.0 LS2 Mahle Pistons 6.125 Callies Comp Star Rods Texas Speed MS3 Cam Stage 3 CNC Ported Patriot 243 Heads Fast 90mm Intake and Fast 90mm Throttle Body Nitrous Outlet 90mm nitrous system

Stage 3 4L65E Yank 3400 Lock Up Converter.
Best 1/8 mile NA 7.15 95mph 1.55 60ft
New Best 1/8 mile NA 6.89 99mph 1.42 60ft 2-12-12
Best 1/8 mile 125 shot 6.94 103mph 1.62 60ft
95s10&ls16speed is offline  
post #43 of 47 Old 09-20-2012, 11:11 AM
Registered User
 
Iroc-10's Avatar
 
Join Date: Oct 2004
Location: A-Town, Ill side
Age: 45
Posts: 3,251

User is: Iroc-10 is offline
Re: Need help just broke another 7.5 Its time to change.

Wow thats a rippin' 60' with basically just cal-tracs and stock leafs. Which 2 did you keep? You do have a really strong setup though. How much do you plan on racing it? How much is it going to be on either drag radials or slicks? That and the combo of are you spraying off the line will probably answer the question if your 7.6 will live or not.

There is no doubt a true-track, moser axles and rear support would really help, but IF you have not spent that money yet, I would rather have something that will not have any doubt of holding up to the HP levels. The 8.5 is a decent rear, but to really beat on it, it needs a true-trac.

In my opinion if your going to beat on the truck, run slicks or drag radials, and bottle it, I would do either an 8.8 from a Ford or a 9". The 8.8 you can get and basically bolt in. You will need to get either the axles redrilled or adapters. I also thought I read you maybe wanted to run Corvette wheels? This would also help with that, as they are a little wider. Pick the gear you want before you buy a rear end though, because they had a large variety available. I think even as a stock piece it would live just fine. Those 8.8 are strong.

If your not really into the 8.8, then I would consider doing a 9". It will cost significantly more though. Nothing is going to bolt in. It is going to be all custom, but it won't break.

Spring of '16 Changes 2 stages:
6.0/Ported heads/Yank SS3600
Turbonetics TC78 & E85

1994 SS S-10 Project CorectionSS LS swap-Running!
http://www.s10forum.com/forum/f213/p...tionss-495456/

1988 S-10 W/ Iroc Package, Screamin' Yellow -SOLD!
Iroc-10 is offline  
post #44 of 47 Old 09-21-2012, 09:26 AM
Registered User
 
Join Date: Feb 2007
Location: Summerville , SC
Age: 33
Posts: 1,753

User is: LXtasy is offline
Re: Need help just broke another 7.5 Its time to change.

We run a stock 8.8 explorer rear. Last year we cut 1.5 60ft times with slapper bars and each leaf spring clamped up front. We have about 100+ passes on that setup. Redrilled axles for gm bolt pattern. 7.625 backspacing on the wheels. Hoping for 1.3 60ft times coming up this year on stock 31 splines axles etc.

Daily Driver -2004 Ecsb Silverado
Wifes Ride - 07 Yukon Denali
Taking up garage space- 1998 4door blazer
2001 Blazer Fun track toy
1997 s-10 lq4 nitrous motor project
LXtasy is offline  
post #45 of 47 Old 10-01-2012, 11:42 PM Thread Starter
Registered User
 
95s10&ls16speed's Avatar
 
Join Date: Dec 2008
Posts: 92

User is: 95s10&ls16speed is offline
Re: Need help just broke another 7.5 Its time to change.

I Picked me up a 8.8 this weekend from a guy off craigslist had to drive less than a hour to pick it up. Its already got a posi unit in it with 31 spline axles and 4.10 gears also has disc brakes already installed plus the axles have been drilled for the 4-3/4 chevy bolt pattern. the guy had it under his 55 chevy and decided he wanted a 9" .I picked it up for 150.00 so I think I did pretty well. It is 59-1/2 wide from flange to flange so I will have to narrow it about 5" Moser said they would cut and respline the axles for 125.00

LS2 Extreme Build Is Complete
2002 Black Extended Cab Step Side S10 Extreme
6.0 LS2 Mahle Pistons 6.125 Callies Comp Star Rods Texas Speed MS3 Cam Stage 3 CNC Ported Patriot 243 Heads Fast 90mm Intake and Fast 90mm Throttle Body Nitrous Outlet 90mm nitrous system

Stage 3 4L65E Yank 3400 Lock Up Converter.
Best 1/8 mile NA 7.15 95mph 1.55 60ft
New Best 1/8 mile NA 6.89 99mph 1.42 60ft 2-12-12
Best 1/8 mile 125 shot 6.94 103mph 1.62 60ft
95s10&ls16speed is offline  
post #46 of 47 Old 10-03-2012, 09:56 PM
Sold :'(
 
s10xtremist's Avatar
 
Join Date: Jun 2006
Location: State Capitol Raceway, Louisiana
Age: 34
Posts: 7,446

User is: s10xtremist is offline
Garage
Re: Need help just broke another 7.5 Its time to change.

Considering what you got the axle for with the Chevy lug pattern already, you're doing damned good, especially if you can get the tubes narrowed for free or cheap.

Getting better with every failure



Project threads:
Punching bag
Unicorn XJ
s10xtremist is offline  
post #47 of 47 Old 10-04-2012, 08:21 AM
Registered User
 
Join Date: Jan 2010
Location: Scott, Arkansas
Age: 36
Posts: 524

User is: ss454 is offline
Re: Need help just broke another 7.5 Its time to change.

I would just change to corvette offset wheels if it were me. 59.5" is perfect to run those. I am scratching my head over my 8.8 right now. I bought it tore down thinking it was a 60" unit from a mustang (axles, diff, gears not installed in it) and it turns out its from a Lincoln MK VII and 62" wide. My main problem is I have camaro wheels and not vette wheels so the backspacing isn't as deep. My front has 2" spacers and will track 64.5" but if I run the 8.8 I will have a 68 rear track width...GRRR! This sucks considering I had the 8.8 built with all new bearings/seals/3.73 gears/carbon Cobra clutch packs and a billet cover.

2005 Silverado SS 13.82 @ 96mph AEM CAI, Circle D 278mm, HD-2 shift kit, ARH LTs, MadTunesracing.com street tune (MTR now has a Dynojet 248 chassis dyno)
ss454 is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the S-10 Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address.


Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome