DeanJ

iTrader: (6)

What about housing length, from the flange, where the backing plate bolts ? Is 93-97 the same length as 98-02 ?

alamantia

iTrader: (10)

I believe tube length to be the same, I am almost 100% suree but I have never measured. The cross pin in an Auburn is a smaller diameter then the width of the thrust block in a torsen, hence the axles that go in the auburn I believe to be slightly longer, so if you use the torsen axles with auburn posi or visa versa there could be a clearance issue with the brakes.

FirstYrLS1Z

iTrader: (4)

GM parts manual shows same axle part numbers for 98 Auburn and 99-02 Torsen.

BUT,Auburn pin is .764" dia. and Torsen block is .936" thick,which means axles with a Torsen would be .086"(just under 3/32') out further.

blown97ss

iTrader: (8)

will a 98-02 rear end bolt up to a 94-97 or does it require a lot of changes

ssvert99

iTrader: (26)

it will bolt up but the brake backing plates, gear ratios, and abs systems may be different. the housing itself is no different other than which abs system it had.