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#1 |
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ZQ8 2001
Age: 28
Join Date: Aug 2001
Posts: 909
Location: Vegas User is: OffLine |
rear axle ratio RPO
GU4=3.08
GU5=3.23 GU6=3.42 GT4=3.73 GT5=4.10 HC4=4.56 G80 - locking differential compare to the codes in your glove box to know which gear ratio you have ![]() |
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#2 |
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Registered User
Age: 26
Join Date: Sep 2002
Posts: 1,635
Location: danville, ca User is: OffLine |
i found the sticker and it has a bunch of lil codes on it and it said G80 on one of them but i dont have a locking diff, i have limited slip....
Last edited by pyros46290 : 09-28-2002 at 01:50 AM. |
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#3 |
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I BURN THINGS
Age: 29
Join Date: Jul 2001
Posts: 5,920
Location: Ft. Wayne User is: OffLine |
The G80 is a limited slip, everyone just calls it a locker because they don't know the diffrence
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#4 |
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Registered User
Age: 26
Join Date: Sep 2002
Posts: 1,635
Location: danville, ca User is: OffLine |
didnt some of the 1st gen blazer 4x4s come with electric lockers?
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#5 |
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Another V8 Member
Age: 25
Join Date: Jul 2002
Posts: 475
Location: Louisville, Ky User is: OffLine |
Mine says GQ1 :confused: I have been to a few places and nobody seems to know my gear ratio, So I guess I'm an odd ball. I may be looking at the wrong thing? :confused: but I doubt it. If anyone knows what I have let me know! It is a 1984 S-10 Sport.
Im thinking it may be 4:10 or something around there, because it turns VERY high RPMS and gets horrible Gas milage with the V8. |
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#6 |
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Registered User
Age: 26
Join Date: Sep 2002
Posts: 1,635
Location: danville, ca User is: OffLine |
note to self: transfer case ratio is stamped onto a tag that is on the back of the transfer case (case ratio is 2.72) now i just need to know my axle ratios......
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#7 |
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Big Dick Daddy
Join Date: Jun 2002
Posts: 256
Location: - Arlington, Texas - User is: OffLine |
i have the g80 code... and I have a straight up locker. I had to take it out cause I fragged a few teeth off my pinion. But it is no doubt a locker and now a limited slip.
JJ |
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#8 |
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ZQ8 2001
Age: 28
Join Date: Aug 2001
Posts: 909
Location: Vegas User is: OffLine |
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#9 |
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3M 9l3H
Age: 62
Join Date: Jun 2002
Posts: 435
Location: User is: OffLine |
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#10 |
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weatherman
Age: 25
Join Date: Jan 2002
Posts: 2,194
Location: pensacola/tallahassee User is: OffLine |
i just checked my beater and its says GT5. that just doesn't make sense to me. a 4 banger with a 4:10 ratio? its a 95 2.2 5 speed. can anybody tell me about this?
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#11 |
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ZQ8 2001
Age: 28
Join Date: Aug 2001
Posts: 909
Location: Vegas User is: OffLine |
that is correct. they need to use the low gear ratio to multiply the little amount of torque the 4cyl puts out. damn near every s10 with the 4cyl and auto tranny has 4.10 rear ratio.
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#12 |
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Registered User
Join Date: Nov 2002
Posts: 124
Location: User is: OffLine |
2.73 = GU2 3.08 = GU4 3.42 = GU6 3.73 = GT4, GQ1 4.10 = GT5 |
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#13 |
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second dime around
Age: 29
Join Date: Oct 2002
Posts: 928
Location: sylmar, california User is: OffLine |
i know there are treads about this but im a dumb ass
what do i need to do or should do to get better traction i have 95 4.3tbi 5 speed GU4 |
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#14 |
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"AfterHours Fabrication"
Age: 26
Join Date: Nov 2002
Posts: 549
Location: CeNtRaL JeRsEy User is: OffLine |
OKAY THIS IS WAT IS SAW INMY GLOVE BOX BY THE RPO CODE......THERE IS NO G80 IN THERE FOR THE POSI REAR....BUT Y AROUND TURNS AND IN THE RAIN AND ON DIRT DO I MOST OF THE TIME GET 2 TIRES........AND WHERE IS THE WEB SITE OR PHNE # TO GET A LOCKER AND HOW MUCH......THANKS AGIAN GUYS
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#15 |
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Registered User
Join Date: Dec 2002
Posts: 16
Location: User is: OffLine |
Me and the OEM's consider the g80 gov-lock a locker. The industry may sometimes use the term "limited slip" when selling you a car, to mean any kind of traction device in general. Be it a locker, limited slip, or computer traction control. The true term evolved to mean non locking differentials, with friction plates to "limit" slip instead of prevent slip. A limited slip gives alot of resistance to differential action at all speeds and at all times, and never locks.
This leaves the definition of locker to mean a device that completely locks the diff at some time. The g80 gov lock locks completely 100% when it does lock. The only reason an aftermarket locker is different is because they lock with any slight difference in torque between the wheels, while the gov-lock locks due to a significant difference in wheel speed between the two wheels. So the gov lock will spin some before it locks. I think the gov lock is supposed to give a little resistance before it locks with friction plates, but not nearly as much as a limited slip. Mine has worn down to where it has no resistance at all until it locks completely. Call it "inferior","not a locker", "a posi", call it whatever you want'; but it is simply bad English to call this, strictly, a "limited slip" Unless you're saying "limited slip" to include all lockers because it is true that something that completely prevents slip also limits it. But thats like saying a full glass is also 1/2 full because it has 1/2 full plus the other 2nd half. |
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#16 |
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Never Satisfied
Age: 32
Join Date: Jan 2002
Posts: 177
Location: Jackson,DirtySouth User is: OffLine |
which trucks usually come with 3.42 from the factory ????
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#17 |
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Its comin along
Age: 24
Join Date: Jul 2002
Posts: 886
Location: Orlando, FL User is: OffLine |
I have a 94 4.3L TBI with a
2.73!! GU2 ![]() |
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#18 |
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Road Race/Auto X S10
Age: 25
Join Date: Dec 2002
Posts: 3,828
Location: South Milwaukee, WI. User is: OffLine |
What'dya get in first like 45mph lol
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#19 |
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Registered User
Join Date: Nov 2002
Posts: 15
Location: User is: OffLine |
Black Dragon:
I just picked up a rear axle from a 87 GMC S15 4x4, the codes in the glove box were GU6 and G80. I understand this means 3:42's Posi. I believe this is a factory option in most of these trucks. I just got this from the scrapyard. Hope this helps Dave |
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#20 |
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mean green machine
Join Date: Jan 2003
Posts: 93
Location: northeast mississippi User is: OffLine |
i've got 3.42's with a torsen LSD.:guitar:
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#21 |
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Registered User
Age: 46
Join Date: Oct 2002
Posts: 40
Location: all alone in the world User is: OffLine |
My Old 94SS and my 00 Xtreme both with V6 and Auto
came with 3:42.1 from the factory |
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#22 |
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Registered User
Join Date: Dec 2002
Posts: 26
Location: Tampa User is: OffLine |
Don't all 2.2s come with the 4.10s?
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#23 |
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Registered User
Age: 27
Join Date: Feb 2003
Posts: 263
Location: Danville.Ca User is: OffLine |
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#24 |
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ZQ8 2001
Age: 28
Join Date: Aug 2001
Posts: 909
Location: Vegas User is: OffLine |
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#25 |
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Registered User
Age: 30
Join Date: Sep 2002
Posts: 2,915
Location: User is: OffLine |
The higher the ratio the better the gas mileage, correct?
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#26 |
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ZQ8 2001
Age: 28
Join Date: Aug 2001
Posts: 909
Location: Vegas User is: OffLine |
taller gears (lower numbers) are better for gas mileage.
3.08 gets better mileage than 4.56 |
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#27 |
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CHANGE YOUR EMAIL ADDRESS
Age: 25
Join Date: Feb 2003
Posts: 1,976
Location: Tallahassee, Florida User is: OffLine |
I have a 01 w/ 4.10, and i was wondering how much of a difference it makes in acceleration, and in gas milage, if someone has changed from 4.10 to 4.56
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#28 |
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Registered User
Join Date: Feb 2003
Posts: 16
Location: Florida User is: OffLine |
Alanky
i too have that gq1 , need to get more info cause i just got the pick up on the weekend its a 91 5speed with a 2,5 tbi! can you post the next code after that...i have a scratch there so hard reading....(??4) the 4 is for sure the first digits are ?? |
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#29 |
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second dime around
Age: 29
Join Date: Oct 2002
Posts: 928
Location: sylmar, california User is: OffLine |
ok i just bought 03 s10 v6
code say GU6 G80 that means i have 3.42 with a locker right?? |
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#30 |
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Now own a 99 Blazer 4x4
Age: 26
Join Date: Feb 2003
Posts: 311
Location: Milwaukee, WI User is: OffLine |
Thats right.
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#31 |
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second dime around
Age: 29
Join Date: Oct 2002
Posts: 928
Location: sylmar, california User is: OffLine |
thats f*ckin cool huh??
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#32 |
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Registered User
Age: 30
Join Date: Sep 2002
Posts: 2,915
Location: User is: OffLine |
:cry: :cry: I want better mileage! |
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#33 |
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Vortec 350 s10
Age: 29
Join Date: Mar 2003
Posts: 840
Location: dirty south, NC User is: OffLine |
3.08 with an open rear..that sucks. I wonder if I can find a quaife type diff for my truck. Anyone know if a company makes a lsd with all gears..(no clutches or cones to wear out)?
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#34 |
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Rattlin Bog
Join Date: Feb 2003
Posts: 98
Location: Nova Scotia User is: OffLine |
My 1991 2wd Sonoma with 4.3 TBI, 4spd auto has a 3.42 in the rear (for now..heh heh).
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#35 |
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fog it!
Age: 27
Join Date: Aug 2002
Posts: 487
Location: north carolina User is: OffLine |
are these codes the same in the full size trucks????
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#36 |
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98 4.3 V6 5 spd black ext
Age: 30
Join Date: Nov 2002
Posts: 82
Location: Murfreesboro, TN User is: OffLine |
3.73 parts on a 3.42??
Hey everyone.
Okay, I need to replace the rear driver side axle on my truck, and I'd like to know if the axle in my 3.42 is the same as the one in a 3.73. I can't check the glove box at this time for my truck's codes, but I can tell you that it's a 98 s10 extended cab with a 4.3 V6. I THINK it's a 3.42, but I'm not positive about that. Also, if I read the earlier posts right (yeah...I'm a newbie at drivetrain tech), if I decided to change out my rear end with the 3.73, that would make my truck faster, but less efficient on gas? Any "helpful" comments would be appreciated. Any flames..well, they'd be duly noted. ![]() |
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#37 |
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Registered User
Join Date: Apr 2003
Posts: 1,380
Location: User is: OffLine |
Your correct. It would make it quicker out of the hole but not as efficient on gas. You rpms will raise a little also.
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#38 |
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LEAD FOOT LARRY
Age: 58
Join Date: Feb 2003
Posts: 423
Location: Baton Rouge, LA User is: OffLine |
there are two different types of axles used. the number of splines that fit into the spyder gears make the difference. all other spec's are the same. to find a posi, limited, locker, try light line of Louisiana. they have fairly diecent prices. www.lightlineofla.com.
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#39 |
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Registered User
Age: 28
Join Date: Apr 2003
Posts: 269
Location: Pekin, IL User is: OffLine |
Differentials
Ok here is a rundown of the different cabs and engine combos for differentials. I found this out just by building an s-10 on chevy.com
2.2 4cyl- regular cab LS - manual tranny/3.73 auto tranny/4.10 extended cab LS- manual tranny/4.10 auto tranny/4.10 regular cab xtreme- manual tranny/3.73 auto tranny/4.10 extended cab xtreme- manual tranny/4.10 auto tranny/4.10 4.3 6cyl- regular cab LS- manual tranny/3.08 auto tranny/3.42 extended cab LS- manual tranny/3.08 auto tranny/3.42 regular cab xtreme- manual tranny/3.08 auto tranny/3.42 extended cab xtreme- manual tranny/3.08 auto tranny/3.42 Positraction is not available on the 4cyl engines Positraction is available on either the 6cyl manual or automatic transmissions. I didnt get it in mine, darn it I should of ordered one. Ah crap... oh well, better luck some other time. arrrrrr ANYWAY ENJOY, IM SURE ALMOST EVERYONE IN HERE WILL |
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#40 |
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Still waters run Deep
Join Date: Jun 2002
Posts: 940
Location: Houston User is: OffLine |
Ok, my RPO code says that I have a 3.08Ratio (GU4) , but I can smoke both tires, and this is straight from the factory, so does this mean I have a limited slip. I have a 99 Extended Cab LS with the 4.3
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#41 |
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Registered User
Age: 32
Join Date: Jun 2003
Posts: 147
Location: User is: OffLine |
I have the 3.42's and the locker, but my question is this:
When does the locker actually "lock" and how can you tell if it is or not, because mine sure feels like it's engaged all the time. I've never heard any stock truck with as loud of drivetrain as these 03' with lockers. Mines a five speed and maybe it's just a loud tranny? But 1st and 2nd gear are LOUD. Does the locker "lock" when you shift down to slow down? thanks John |
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#42 |
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Registered User
Age: 27
Join Date: Dec 2002
Posts: 78
Location: Central, ME User is: OffLine |
On an unrelated note, it looks like I have the GT4 code in my '98 Blazer 4-door, and the G80. So I have 3.73 gears and a locker, right? I thought only the ZR2s came with the 3.73s though.... |
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#43 |
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Registered User
Join Date: Jun 2003
Posts: 25
Location: User is: OffLine |
How hard is it to change a 3.42 gear to a 3.73? Is it a do-it-yourselfer?
Clueless |
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#44 |
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NOT AN ADMIN!!
Age: 22
Join Date: Dec 2002
Posts: 2,226
Location: Atlantic County NJ User is: OffLine |
GU6 and G80, I cant complain its a pretty good setup.
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#45 |
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Registered User
Join Date: Jul 2003
Posts: 46
Location: sebring User is: OffLine |
i know iam probably on the wrong page,but i have a 85 s15 rear end with the code GAD on it.can anybody tell me anything about this code.
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#46 |
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musical engine builder
Age: 25
Join Date: Apr 2003
Posts: 2,024
Location: pewaukee,WI User is: OffLine |
i got GT4-3.73.
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#47 |
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Newbie
Age: 28
Join Date: Jul 2003
Posts: 18
Location: muskegon User is: OffLine |
i'm lost. exctaly what row/column do i look at to find out what gear ratio i have?
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#48 |
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Newbie
Age: 28
Join Date: Jul 2003
Posts: 18
Location: muskegon User is: OffLine |
never mind the my last post. i found it out. i have a gu4 code. its a 3.08 rear axle ratio.
so taller gears get better gas mileage. what short gears do? |
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#49 |
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Trance is what I breathe
Age: 23
Join Date: Oct 2002
Posts: 926
Location: Okeene, Oklahoma User is: OffLine |
faster acceleration
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#50 |
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Registered User
Age: 29
Join Date: Jul 2002
Posts: 92
Location: User is: OffLine |
ok i could not find the codes you have listed heir is what i saw .
92 4.3 tbi 5sp / 1gccs19z2n2129397 cs10653 wa-l9096 v9096 93 2.8 tbi 5sp / 1gccs19r4p0148838 what does this mean ???? |
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