teddyca

I have my little bro picking up what claims to be a complete Z06 rear diff. I found that the part numbers differ from the C5 and C5Z rears. Are these numbers stamped right on the carrier? I believe a Getrag tag should be on the unit. Correct? Here are the part numbers I found on the web. He is calling when he picks it up. Thanks
Z06-12572683
C5-12551769

waupachino

Yes, the Z06 part number should match the number stamped into the rear diff tag.

99Lingenfelter

I believe the tag on the diff will says 3.42 for C5's and 3.42 SP for Z06's. SP=shot peened.

SteveDoten

BlackZ06

There is no such thing as a "Z06" rear differntial ..... ALL C5 Corvettes with either the MN6 or M12 (Z06) transmission were built with the 3.42 rear gear set.

teddyca

Wrong my friend. While they both have 3.42 gearing, the Z has shot peened gears.

dndrsn

What's the RPO# for shotpeened diffs?

Darkhalf

ICaughtVetteFever

x2

BlackZ06

Really, What's the RPO number for this ... ????

You're dreaming if you believe this urban legend .....

99Lingenfelter

+

x3

Not sure about an RPO#, but on the getrag tag thats on the rear of the diff, the Z06 rears do say 3.42 SP, for the shot peened gears. I'm not sure how to tell otherwise.

BlackZ06

Look at the Getrag website ....

http://www.getrag.de/323

The Getrag Model 625 Differential is the SAME in all of the C5 Corvettes with the 3.42 rear end ... period ...done ... end of story.

Try this link ...

http://www.lingenfelter.com/store/get-273.html

dndrsn

but here is the one for the Z06: http://www.getrag.de/324 Model 626.

and here is what it says on the Lingenfelter site: These are complete new assemblies ready to bolt in. 3.42:1 and 3.73:1 ring and pinions are shot peened for added strength.

now I am really confused.

TBYRNE lists a Z06 differential and charges $100 more for it.

99Lingenfelter

Got this strait from Getrags website. Search for corvette. It returns two seperate part numbers, part 625 for corvette and part 626 for corvette z06.

C5 = http://www.getrag.de/323
C5Z = http://www.getrag.de/324

Endo story!

VLVETTE

The really strange thing about it when I bought my 3.42s the Z06 Rearend was cheaper than the stock Vettes,

99Lingenfelter

Where at? When I was looking, the Z06 rears were always more.

Mike Mercury

totally and completely 100% incorrect.

non Z06 carrier; #12551769

Z06 carrier; GM #12572683

99Lingenfelter

I guess we could say that this myth has been BUSTED.

Mike Mercury

the only urban legend is that you know what your posting about.

SLPRC5

correctomondo