natronathon

I recently purchased my f-body used from a dealer. I have a 98 Z28 A4, stock other than a lid, and smooth bellow. I am wondering if the option for 3:23 rear end gears was available on the 98? If so how do I find out which gears I have in the rear-end of my car? If this helps anybody, I do know that with stock tire size my car runs at about 2000rpms at 60mph in overdrive. If anybody can help please let me know.

felton316

You can look on the RPO sticker (should be on the drivers door).

If you have the code:

GM8 = 2.56
GU2 = 2.73
GU4 = 3.08
GU5 = 3.23
GU6 = 3.42

natronathon

thanks for the info! Ill have to go check it out!

Kurt D

iTrader: (2)

~2000 rpms at 60mph (actually around 58-59mph) sounds right for 3.23s.

natronathon

I just checked my door jam GU5. I HAVE 3.23 YEAHHHHH!!!! WOOOHOOOO!!! sorry about that, I just figured I wasnt lucky enough to have the most race-bred z28 a4 that they made in 98. I have even more good news gentlemen! I am now experiencing that great feeling we all experience when finish putting our cars back together. My baby is runnin again! Unfortunately i had it taken apart because i screwed up the front end - bad experience - combination of an unseen oil spill and a ditch. But thats the past now im back and runnin! Thanks for all the help on my question!