G80 Prices and questions.

NickelNDime · 10-25-2009, 08:25 AM

I found a complete G80 just wondering what a fair price is for one. Is there a better option out there? Or would this be the easiest way to go rear disk on a first gen?

The truck will have a mildly built sbc, what problems might I run in to with this setup? I have read good and bad things about this rearend, and have searched. I'm just looking for a specific answer to my specific question.

Thanks

big gear head · 10-25-2009, 02:00 PM

They usually sell for around $400 around here. The G80 is a Governor Lock, which has some weak parts in it. I've even seen the cases split in two. The Eaton Posi is a much stronger differential, but the Governor Lock might hold up fine for a while if you don't abuse it.

NickelNDime · 10-25-2009, 08:32 PM

What would you recommend would be the best route to improveing the rearend and upgrading to rear disk then? With out spending an insane amount.

***orangesonoma*** · 10-25-2009, 08:39 PM

400?? i bought both of mine for 100 each

Daveman2 · 10-25-2009, 08:52 PM

yeah I would avoid the G80 IMO and get an LSD, you can find great aftermarket units for $400

big gear head · 10-25-2009, 09:40 PM

I prefer the Eaton Posi over all other differentials for a street/strip GM car. They are $445 for the 7.5 rear end. You could get a disc brake rear end with the gear ratio that you want for your truck and install an Eaton Posi in it. That's one option. If you found one that you like with the Governor Lock in it then you could try it. If it breaks then you could install the Eaton. Or you could take the Gov Lock out and sell it and install the Eaton.

***orangesonoma*** · 10-25-2009, 09:45 PM

oh i should also have added they suck..

Daveman2 · 10-25-2009, 09:58 PM

Quote: Originally Posted by orangesonoma

oh i should also have added they suck..

X2 mine isn't doing sh*t, and one if the few time I had to use my 4WD Lo to get out of somewhere it got lock ed up and I had to play witch doctor for 10 minutes to get it to unlock

I just spin inside tire at the auto-x and in the rain all-day, every day

NickelNDime · 10-26-2009, 06:21 PM

I was curious cause the G80 I found, the guy wants $350 for it and that seemed kinda spendy.

S15vortecpwr · 10-26-2009, 10:29 PM

Quote: Originally Posted by NickelNDime

I was curious cause the G80 I found, the guy wants $350 for it and that seemed kinda spendy.

no way would i spend 350 on a g80 that will explode. get a torson unit from a ls1 f-body and be done with it. I have 2 one in my WS6 and one in my 94, they say locked while you have your foot in it to where a G80 will unlock at a certain RPM.

Driveway Kustoms · 10-27-2009, 09:29 AM

Quote: Originally Posted by S15vortecpwr

no way would i spend 350 on a g80 that will explode. get a torson unit from a ls1 f-body and be done with it. I have 2 one in my WS6 and one in my 94, they say locked while you have your foot in it to where a G80 will unlock at a certain RPM.

more info please

just where to find that locker, and what code would it be under? thanks

big gear head · 10-27-2009, 10:46 AM

The Torsen units were installed in 4th gen Camaros and Firebirds with the LS engine. It will be the same G80 code on the RPO tag.

FoolThrottle · 10-27-2009, 02:18 PM

Did they ever put those torson units in an 8.5, rear if so what?

big gear head · 10-27-2009, 05:00 PM

I don't know of any factory installed Torsen units in the 8.5 rear end. The only limited slip differentials that I know of that were factory installed in the 8.5 were the Traction Lock, Auburn and Governor Lock.

NickelNDime · 10-27-2009, 06:09 PM

Wow I'm lost. I have a lot to learn.

Driveway Kustoms · 10-27-2009, 07:54 PM

i have a g80 lol

big gear head · 10-27-2009, 08:10 PM

G80 is the code that GM uses for all limited slip differentials in all of their products. If you have a truck then the G80 is a Governor Lock. If you have a car then it can be a Torsen, Auburn, True Trac or Eaton, depending on what car you have and when it was made. G80 only means Governor Lock in a truck.

NickelNDime · 10-27-2009, 09:24 PM

See everything I search I find dozens of opionions. Some people say they will bolt right up some say a 2wd needs a G80 from a 2wd and 4wd from 4wd. Now you are talking about just swaping a different part in to the rear disk housing correct? I'm not extremly familiar with the inner workings of a differential.

I dont want to spend a fortune on the rearend when I'm going frame up on the truck. So what exactly is the best option for a solid rearend with rear disk for a 2wd reg cab short box firstgen? Is there narrowing involved with the swap as well?

big gear head · 10-28-2009, 08:54 AM

Go with the original plan for the rear end that you found. Run it until it breaks (it might not ever break) and then fix it with better parts. That's probably the easiest thing for you to do. The 4X4 rear end is wider than the 2 wheel drive rear end, so if you have a 2 wheel drive you will want a 2 wheel drive rear end. If you want to run wheels with a lot of back spacing then the 4X4 rear end will allow you to do this without using wheel spacers.

Svtzx555 · 10-28-2009, 09:43 AM

You should read up on the 8.8 explorer rear end swap. It "is the best option for a solid rearend with rear disk for a 2wd reg cab short box firstgen". Can be found at any junkyard, come with great choice of gears, some already come with limited slip carriers, disk brakes...can be narrowed or bolt right in.

NickelNDime · 10-28-2009, 09:26 PM

ok I'll search that, what does it cost aprox. to narrow a rear end?

big gear head · 10-29-2009, 08:07 AM

I narrow the housing for $100. A set of axles can run from $245 to $345, depending on the rear end and axle bearings.

Maverick2664 · 10-30-2009, 06:45 PM

forget the govlock, theyre junk, i bought a rebuilt eaton locker for 125 on ebay. and theyre a ton stronger

NickelNDime · 10-31-2009, 10:07 AM

Iroc-10 · 11-02-2009, 04:42 PM

Svtzx555 is right. The best rear end for the price is the explorer 8.8. You can re-drill the bolt pattern yourself if you take your time, just read on some of the swaps. You can get just about any combo of gears you want, with a posi and disc brakes and it basically bolts right in. If you were close I could set you up with a GM 8.5. They are very hard to find and usually very expensive, where the explorer is all over and cheap by comparison. The 8.5 only came in a 4.3 5spd with the optional rear end, mostly Blazers, but the still have a weak posi and needs to be swapped. Unless your really talented, you probably don't want to attempt swapping out center sections and re-setting up gears. Most people charge about $200 - $300 to set up gears. Just read on the explorer swap and find the gears you want and buy that rear and be done.

NickelNDime · 11-02-2009, 09:14 PM

doesnt that need to be narrowed as well?

**Redsdime** · 11-03-2009, 08:54 PM

i got mine shipped to my door for 120.

10-25-2009, 08:25 AM	#1
NickelNDime Registered User Age: 24 Join Date: Jan 2009 Posts: 142 Location: ST. Peter, MN User is: OffLine	G80 Prices and questions. I found a complete G80 just wondering what a fair price is for one. Is there a better option out there? Or would this be the easiest way to go rear disk on a first gen? The truck will have a mildly built sbc, what problems might I run in to with this setup? I have read good and bad things about this rearend, and have searched. I'm just looking for a specific answer to my specific question. Thanks
	[Reply w/Quote]

10-25-2009, 02:00 PM	#2
big gear head Registered User Join Date: Jun 2009 Posts: 472 Location: Central City, KY User is: OffLine	Re: G80 Prices and questions. They usually sell for around $400 around here. The G80 is a Governor Lock, which has some weak parts in it. I've even seen the cases split in two. The Eaton Posi is a much stronger differential, but the Governor Lock might hold up fine for a while if you don't abuse it.
	[Reply w/Quote]

10-25-2009, 08:32 PM	#3
NickelNDime Registered User Age: 24 Join Date: Jan 2009 Posts: 142 Location: ST. Peter, MN User is: OffLine	Re: G80 Prices and questions. What would you recommend would be the best route to improveing the rearend and upgrading to rear disk then? With out spending an insane amount.
	[Reply w/Quote]

10-25-2009, 08:39 PM	#4
*orangesonoma* forum idiot Age: 31 Join Date: Oct 2002 Posts: 48,276 Location: Indian Trail, NC User is: OffLine	Re: G80 Prices and questions. 400?? i bought both of mine for 100 each
	[Reply w/Quote]

10-25-2009, 08:52 PM	#5
Daveman2 Road Racing Blazer Age: 22 Join Date: May 2004 Posts: 4,977 Location: San Francisco, CA User is: OffLine	Re: G80 Prices and questions. yeah I would avoid the G80 IMO and get an LSD, you can find great aftermarket units for $400
	[Reply w/Quote]

10-25-2009, 09:40 PM	#6
big gear head Registered User Join Date: Jun 2009 Posts: 472 Location: Central City, KY User is: OffLine	Re: G80 Prices and questions. I prefer the Eaton Posi over all other differentials for a street/strip GM car. They are $445 for the 7.5 rear end. You could get a disc brake rear end with the gear ratio that you want for your truck and install an Eaton Posi in it. That's one option. If you found one that you like with the Governor Lock in it then you could try it. If it breaks then you could install the Eaton. Or you could take the Gov Lock out and sell it and install the Eaton.
	[Reply w/Quote]

10-25-2009, 09:45 PM	#7
*orangesonoma* forum idiot Age: 31 Join Date: Oct 2002 Posts: 48,276 Location: Indian Trail, NC User is: OffLine	Re: G80 Prices and questions. oh i should also have added they suck..
	[Reply w/Quote]

10-25-2009, 09:58 PM	#8
Daveman2 Road Racing Blazer Age: 22 Join Date: May 2004 Posts: 4,977 Location: San Francisco, CA User is: OffLine	Re: G80 Prices and questions. Quote: Originally Posted by orangesonoma oh i should also have added they suck.. X2 mine isn't doing sh*t, and one if the few time I had to use my 4WD Lo to get out of somewhere it got lock ed up and I had to play witch doctor for 10 minutes to get it to unlock I just spin inside tire at the auto-x and in the rain all-day, every day
	[Reply w/Quote]

10-26-2009, 06:21 PM	#9
NickelNDime Registered User Age: 24 Join Date: Jan 2009 Posts: 142 Location: ST. Peter, MN User is: OffLine	Re: G80 Prices and questions. I was curious cause the G80 I found, the guy wants $350 for it and that seemed kinda spendy.
	[Reply w/Quote]

10-26-2009, 10:29 PM	#10
S15vortecpwr goin broke but n style Age: 29 Join Date: Jan 2007 Posts: 3,783 Location: Wetumpka, Alabama User is: OffLine	Re: G80 Prices and questions. Quote: Originally Posted by NickelNDime I was curious cause the G80 I found, the guy wants $350 for it and that seemed kinda spendy. no way would i spend 350 on a g80 that will explode. get a torson unit from a ls1 f-body and be done with it. I have 2 one in my WS6 and one in my 94, they say locked while you have your foot in it to where a G80 will unlock at a certain RPM.
	[Reply w/Quote]

10-27-2009, 09:29 AM	#11
Driveway Kustoms manual>automatic Age: 19 Join Date: Jul 2008 Posts: 1,850 Location: K-Town, NY User is: OffLine	Re: G80 Prices and questions. Quote: Originally Posted by S15vortecpwr no way would i spend 350 on a g80 that will explode. get a torson unit from a ls1 f-body and be done with it. I have 2 one in my WS6 and one in my 94, they say locked while you have your foot in it to where a G80 will unlock at a certain RPM. more info please just where to find that locker, and what code would it be under? thanks
	[Reply w/Quote]

10-27-2009, 10:46 AM	#12
big gear head Registered User Join Date: Jun 2009 Posts: 472 Location: Central City, KY User is: OffLine	Re: G80 Prices and questions. The Torsen units were installed in 4th gen Camaros and Firebirds with the LS engine. It will be the same G80 code on the RPO tag.
	[Reply w/Quote]

10-27-2009, 02:18 PM	#13
FoolThrottle WTF!!! Age: 31 Join Date: Jul 2007 Posts: 243 Location: PA User is: OffLine	Re: G80 Prices and questions. Did they ever put those torson units in an 8.5, rear if so what?
	[Reply w/Quote]

10-27-2009, 05:00 PM	#14
big gear head Registered User Join Date: Jun 2009 Posts: 472 Location: Central City, KY User is: OffLine	Re: G80 Prices and questions. I don't know of any factory installed Torsen units in the 8.5 rear end. The only limited slip differentials that I know of that were factory installed in the 8.5 were the Traction Lock, Auburn and Governor Lock.
	[Reply w/Quote]

10-27-2009, 06:09 PM	#15
NickelNDime Registered User Age: 24 Join Date: Jan 2009 Posts: 142 Location: ST. Peter, MN User is: OffLine	Re: G80 Prices and questions. Wow I'm lost. I have a lot to learn.
	[Reply w/Quote]

10-27-2009, 07:54 PM	#16
Driveway Kustoms manual>automatic Age: 19 Join Date: Jul 2008 Posts: 1,850 Location: K-Town, NY User is: OffLine	Re: G80 Prices and questions. i have a g80 lol
	[Reply w/Quote]

10-27-2009, 08:10 PM	#17
big gear head Registered User Join Date: Jun 2009 Posts: 472 Location: Central City, KY User is: OffLine	Re: G80 Prices and questions. G80 is the code that GM uses for all limited slip differentials in all of their products. If you have a truck then the G80 is a Governor Lock. If you have a car then it can be a Torsen, Auburn, True Trac or Eaton, depending on what car you have and when it was made. G80 only means Governor Lock in a truck. Last edited by big gear head : 10-27-2009 at 08:11 PM.
	[Reply w/Quote]

10-27-2009, 09:24 PM	#18
NickelNDime Registered User Age: 24 Join Date: Jan 2009 Posts: 142 Location: ST. Peter, MN User is: OffLine	Re: G80 Prices and questions. See everything I search I find dozens of opionions. Some people say they will bolt right up some say a 2wd needs a G80 from a 2wd and 4wd from 4wd. Now you are talking about just swaping a different part in to the rear disk housing correct? I'm not extremly familiar with the inner workings of a differential. I dont want to spend a fortune on the rearend when I'm going frame up on the truck. So what exactly is the best option for a solid rearend with rear disk for a 2wd reg cab short box firstgen? Is there narrowing involved with the swap as well?
	[Reply w/Quote]

10-28-2009, 08:54 AM	#19
big gear head Registered User Join Date: Jun 2009 Posts: 472 Location: Central City, KY User is: OffLine	Re: G80 Prices and questions. Go with the original plan for the rear end that you found. Run it until it breaks (it might not ever break) and then fix it with better parts. That's probably the easiest thing for you to do. The 4X4 rear end is wider than the 2 wheel drive rear end, so if you have a 2 wheel drive you will want a 2 wheel drive rear end. If you want to run wheels with a lot of back spacing then the 4X4 rear end will allow you to do this without using wheel spacers. Last edited by big gear head : 10-28-2009 at 08:56 AM.
	[Reply w/Quote]

10-28-2009, 09:43 AM	#20
Svtzx555 Come out and plaaaaaaay! Join Date: Jan 2006 Posts: 516 Location: Mobile User is: OffLine	Re: G80 Prices and questions. You should read up on the 8.8 explorer rear end swap. It "is the best option for a solid rearend with rear disk for a 2wd reg cab short box firstgen". Can be found at any junkyard, come with great choice of gears, some already come with limited slip carriers, disk brakes...can be narrowed or bolt right in.
	[Reply w/Quote]

10-28-2009, 09:26 PM	#21
NickelNDime Registered User Age: 24 Join Date: Jan 2009 Posts: 142 Location: ST. Peter, MN User is: OffLine	Re: G80 Prices and questions. ok I'll search that, what does it cost aprox. to narrow a rear end?
	[Reply w/Quote]

10-29-2009, 08:07 AM	#22
big gear head Registered User Join Date: Jun 2009 Posts: 472 Location: Central City, KY User is: OffLine	Re: G80 Prices and questions. I narrow the housing for $100. A set of axles can run from $245 to $345, depending on the rear end and axle bearings.
	[Reply w/Quote]

10-30-2009, 06:45 PM	#23
Maverick2664 Heavy Metal Body Man Age: 25 Join Date: Jun 2007 Posts: 3,135 Location: Erie PA User is: OffLine	Re: G80 Prices and questions. forget the govlock, theyre junk, i bought a rebuilt eaton locker for 125 on ebay. and theyre a ton stronger
	[Reply w/Quote]

10-31-2009, 10:07 AM	#24
NickelNDime Registered User Age: 24 Join Date: Jan 2009 Posts: 142 Location: ST. Peter, MN User is: OffLine	Re: G80 Prices and questions. Wtf?
	[Reply w/Quote]

11-02-2009, 04:42 PM	#25
Iroc-10 Registered User Age: 39 Join Date: Oct 2004 Posts: 278 Location: User is: OffLine	Re: G80 Prices and questions. Svtzx555 is right. The best rear end for the price is the explorer 8.8. You can re-drill the bolt pattern yourself if you take your time, just read on some of the swaps. You can get just about any combo of gears you want, with a posi and disc brakes and it basically bolts right in. If you were close I could set you up with a GM 8.5. They are very hard to find and usually very expensive, where the explorer is all over and cheap by comparison. The 8.5 only came in a 4.3 5spd with the optional rear end, mostly Blazers, but the still have a weak posi and needs to be swapped. Unless your really talented, you probably don't want to attempt swapping out center sections and re-setting up gears. Most people charge about $200 - $300 to set up gears. Just read on the explorer swap and find the gears you want and buy that rear and be done.
	[Reply w/Quote]

11-02-2009, 09:14 PM	#26
NickelNDime Registered User Age: 24 Join Date: Jan 2009 Posts: 142 Location: ST. Peter, MN User is: OffLine	Re: G80 Prices and questions. doesnt that need to be narrowed as well?
	[Reply w/Quote]

11-03-2009, 08:54 PM	#27
Redsdime S-Dime Swag Age: 20 Join Date: Jun 2007 Posts: 3,252 Location: canton/mass. OH User is: OffLine	Re: G80 Prices and questions. i got mine shipped to my door for 120.
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