3.91 Rear gears [Archive] - Pontiac GTO Forums: Pontiac GTO Forum

: 3.91 Rear gears


1badstream
09-29-2004, 01:43 PM
seen this on another post, hopefully Mike can give me an estimate on when I can get a set of gears for the goat. How hard is the install? I assume some computer work would need to be done after I did this?

Originally posted by Mike D@ Aug 25 2004, 11:41 AM

As for the GTO the rear is basically a hybrid of the DANA 44 similar to the Vette and Viper. The rear is called a Model M80 - IRS made by Spicer Australia. Gears are readily avalable in Australia and i am in the process of possibly bringing some in. 3.07's, 3.23's, 3.46's (which is what we have), 3.73's and 3.91's.

Parts Cannot be swaped between Borg Warner rear and the M80

Mike

Mike D
09-29-2004, 03:28 PM
I will email my Australian customer. Give me a day or 2.