06-03-2012, 10:33 PM
I have 3.42's that came off a M6 corvette and my buddy wants to buy them for his A4 C5 vette, will they fit?? I did research and i wasnt sure if they would fit or not. Dont want him to tear apart his rear end and the gears wont fit. Anyone have any imput on this??
06-05-2012, 03:18 PM
The gears should be the same, the diff case is the same..unless its a z06 case has more ribs.
06-05-2012, 07:14 PM
The gears themselves or the whole differential? If it's the whole diff, it's a bolt on. Just unbolt the diff, swap the seal plate over and bolt it back on.
If just the gears themselves, they will fit as long as it's a 3 series carrier (3.15). A 2 series carrier (2.73) will not fit right without a spacer. Something about the reluctor ring. Swapping the gears in the diff is a pretty involved job to set up right.
The tune in the A4 car needs to be reprogrammed to shift correctly with the new gears.