1998 tahoe, 10-bolt rear end? L/S?

IMWACK · Post by **IMWACK** » Wed Jul 17, 2013 2:53 pm

what rear end is in my 1998 Tahoe 2-door? also without jacking it up, is there a code on the diff tag, or somewhere else that will tell me if it is a limited slip? was limited slip even an option on this rig?

Speeder · Post by **Speeder** » Wed Jul 17, 2013 4:22 pm

It'll be a 10 bolt. The G codes will tell you what the rear end is, and whether it has a posi. G80 is the posi code.

CrazyHoe · Post by **CrazyHoe** » Wed Jul 17, 2013 5:59 pm

I have a 2dr and it's a 10 bolt G80 3.42

Also came with a 3.73

Speeder · Post by **Speeder** » Wed Jul 17, 2013 6:41 pm

CrazyHoe wrote:I have a 2dr and it's a 10 bolt G80 3.42

Also came with a 3.73

That must be noisy.

CrazyHoe · Post by **CrazyHoe** » Wed Jul 17, 2013 7:41 pm

Only when the loud pedal is pressed.

Speeder · Post by **Speeder** » Thu Jul 18, 2013 4:36 pm

CrazyHoe wrote:I have a 2dr and it's a 10 bolt G80 3.42

Also came with a 3.73

CrazyHoe · Post by **CrazyHoe** » Thu Jul 18, 2013 8:05 pm

The 2dr Tahoe came with 3.42 or 3.72

Speeder · Post by **Speeder** » Fri Jul 19, 2013 10:38 am

I know, but they way you wrote it, was like you had both in yours at the same time.

daddy_dandy · Post by **daddy_dandy** » Fri Jul 19, 2013 11:09 am

one in the front, one in the back

z71gmc06 · Post by **z71gmc06** » Fri Jul 19, 2013 11:49 am

Haven't you ever heard of a 2 speed rear end?

IMWACK · Post by **IMWACK** » Fri Jul 19, 2013 12:13 pm

so if the diff tag has a "G80" on it, it is L/S?

Speeder · Post by **Speeder** » Fri Jul 19, 2013 1:37 pm

IMWACK wrote:so if the diff tag has a "G80" on it, it is L/S?

Yes, it is the GM factory limited slip, which works OK for most people but won't stand up to much power. And, if you have a lot of power and it hooks hard enough to break, the shockwave up the driveshaft will kill a 4L60E trans.

CrazyHoe · Post by **CrazyHoe** » Fri Jul 19, 2013 8:21 pm

Speeder wrote:I know, but they way you wrote it, was like you had both in yours at the same time.

Yes, it was they optional hybrid axle with a spare G80 that came with the auto-scrap 5 button switch....

IMWACK · Post by **IMWACK** » Mon Jul 22, 2013 10:15 am

the whole diff tag is broken off, just the little part around the bolt is still there. I guess I need to get off my butt and jack it up, put it in neutral, spin one tire and see if the other turns the same direction (L/S), or the opposite direction (open)

SikSilverado · Post by **SikSilverado** » Mon Jul 22, 2013 5:37 pm

I just jack one side up and get in the truck and see if I can drive off the stand. .

My G80 held up to 600+ hp for 185k then started to click click click click if you got on it hard from a stop.. It's a trutrac now.