The Definitive AU Diff Topic

[Armageddon]

Originally Posted by Dave_Obsession

Thread-mine time.....this has been bugging me for some time, so I asked the guys at Etheridge Ford about AU diffs...



I got the following response this morning from the service manager:



So does this mean that any AU 3.45 diff will fit, regardless of whether the donor car was IRS or live axle - since it's only the diff centre that's being changed, it's all good? Or am I missing something here - is there anything else that would be changed over???

I have an AU series 1 option 20 with live axle LSD and 3:45 gear ratio...so I believe the dealer info is correct.