I am fairly certain that only the V6's received the standard rear axle and had the G80 option of receiving the LS rear axle. All V8 4th Gens received the limited slip.
To find your rear axle ratio look at your RPO codes on the build sheet. Could be on door jamb, center console, glove box.
GU2 = 2.73 - V8 A4 without "performance rear axle
GU4 = 3.08 - Usually on the V6's
GU5 = 3.23 - V8 A4 with performance rear axle
GU6 = 3.42 - V8 with M6 - All
So if my '96 V8 Formula is acting like an open differential, I have a worn out limited slip? Damn. Thanks guys for the answers.
Have you changed your differential lube lately? If so, did you add the limited slip additive? It may help to drain the old lube and put in some new lube along with the additive.
But, yes it is also possible that you have worn clutches within the LS unit.
I just bought the car this summer, and have not changed the oil. I believe, but I could be wrong, that the additive actually makes the cluches grab less, so no additive might work..(not that I'll try it)
Can those clutch(?) disks in the rear end be changed without removing the carrier? I really don't want to dig into this rearend (bad luck with rearends before; noisy, etc) I'll most likely take it in if that's what it requires. Thanks guys.
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