Its my 1st time posting here so be ready for some newbie questions.
I've got a gray market '84 635csi and have a few questions.
1st of all, there is a roar in the rear diff that has me concerned. It only occurs when I'm accelerating or decelerating when the car's in gear and clutch is engaged. If the clutch pedal is depressed and the car's rolling, there is no noticible noise. Any ideas on which bearing I'm looking at needing to replace? Also, would it just be easier to replace the rear diff from a parts car? Would one from a 7 series fit?
2nd, I have 15" Rial wheels with 225-60/15 Yoko AVS intermediates and they rub the front wheel wells when turning. I'm sure it doesn't help that the car is lowered on Bavauto sport springs but I'm just wondering what size tires everyone else here uses. I was thinking of just replacing the front AVS's with a comparable tire (thinking AVS ES100) in possibly a 225-50/15 size. Any comments?
3rd is a general question....where is a good place to source used parts for this car? I need some rear speaker pods (I'm guessing this is common), some HVAC controls, and assorted other crap.
Thanks!
Jason Mawhinney
'84 635csi
'70 MGB
'85 Audi 4000 quattro 20v
'87 Audi 5000 turbo quattro