quick question!! please help

[02cetransam]

What type of gears would a stock rear end in 2001 z28 6-speed have? Also, if someone asked "what size, 8.5?" how would I respond? Lastly, how much would it be worth if it had around 60K miles on it? Please advise. Thanks!

[blackSS01]

What type of gears would a stock rear end in 2001 z28 6-speed have? Also, if someone asked "what size, 8.5?" how would I respond? Lastly, how much would it be worth if it had around 60K miles on it? Please advise. Thanks!

Stock gears are 3.42s, 7.5inch and around $250 give or take

[Spikito]

I'm curious about gears...a whole new rear end is like $2500.

But if my rear end blows up, what's involved in rebuilding?

Would I just need the ring and pinion? New axles? Or does it all just depend on how bad it blows up

[02cetransam]

Stock gears are 3.42s, 7.5inch and around $250 give or take

Thank you. I couldnt find it on the net.

[blackSS01]

I'm curious about gears...a whole new rear end is like $2500.

But if my rear end blows up, what's involved in rebuilding?

Would I just need the ring and pinion? New axles? Or does it all just depend on how bad it blows up

Most of the time just ring and pinion but can be alot more depending on how it blows

[Knight]

If your rear is stock, more than likely you will destroy the carrier. Then axles. Usually gears are the last thing to break.
If the carrier goes....well, just ask me or Spaz about the damage it can do. Depending on the carrier you decide to use, you could pay quite a bit. Which in the end, really isn't worth it. Sadly, the rears in our cars were a poor choice for use from GM.

[35th-ANV-SS]

Stock gears are 3.42s, 7.5inch and around $250 give or take

I agree I've seen stock pieces go anywhere from $150 up to $450. Guess who got $450 for theirs

[Knight]

I agree I've seen stock pieces go anywhere from $150 up to $450. Guess who got $450 for theirs

Spaz better be bringing me a truckload of beer.....one of his moving trucks too

[35th-ANV-SS]

I meant I sold mine for $450. Spaz is still without a rear-end isn't he? Last I saw he might have been getting one from someone...not sure if that happened or not yet though.

[Knight]

I meant I sold mine for $450. Spaz is still without a rear-end isn't he? Last I saw he might have been getting one from someone...not sure if that happened or not yet though.

Happening this weekend. And he's getting mine. Which probably makes my post make more sense now

[35th-ANV-SS]

Yes

[0rion]

What type of gears would a stock rear end in 2001 z28 6-speed have? Also, if someone asked "what size, 8.5?" how would I respond? Lastly, how much would it be worth if it had around 60K miles on it? Please advise. Thanks!

it depends on the RPO code ( can find it inside the drivers door)

GU2 - Axle Ratio 2.73, Rear

GU6 - Axle Ratio 3.42, Rear

6 speed really only had those 2 options and like stated....it's a 7.5" rear.

[35th-ANV-SS]

I thought all 2001 M6's were 3.42? Or was that just the SS?

[0rion]

I thought all 2001 M6's were 3.42? Or was that just the SS?

not sure......that'd be the first time I've heard that but I'm an a4 guy so I stop listening usually when talking about m6 cars The RPO code will settle it for sure though.

[Zapper2003]

Only real way to know for sure though, is to open up the cover and find out. My RPO was for 2.73, but the rear had 3.42 in it. Not sure if axle was changed.

[35th-ANV-SS]

Only real way to know for sure though, is to open up the cover and find out. My RPO was for 2.73, but the rear had 3.42 in it. Not sure if axle was changed.

Counting the number of revolutions the drive shaft turns while turning the rear tire 1 full revolution would be much easier.

Ex: 1 full revolution of the rear tire and the drive shaft turns 3.5 times, you have a 3.42 gear. If the drive shaft turns 2-3/4 times, you have a 2.73 gear, etc. You just need to mark the drive shaft with a paint stick or something visible.

[0rion]

Only real way to know for sure though, is to open up the cover and find out. My RPO was for 2.73, but the rear had 3.42 in it. Not sure if axle was changed.

I would say it was for sure changed......you also don't have to open the cover. You can mark the driveshaft and the tire and turn them while counting the revolutions.

[Zapper2003]

That requires mathemetrics. I dont know mathemetitrics.

[35th-ANV-SS]

That requires mathemetrics. I dont know mathemetitrics.

So how do you plan on counting the number of teeth on both the pinion and the ring?

[blackSS01]

01 Stock M6 (No gear change) = 3.42's!

No M6 came with 2.73's, think of 6th gear at 60mph the rpms would be about 500