0/1/2/3 diffs

[paul.heneghan@bbc.co.uk (Paul Heneghan)]

From: SOP8920@Siena.edu

>Quick Lube monkey says " Your car is front wheel drive and THERFORE doesn't 
>have a differential."

>Me: "Um.. no, this car is all wheel drive and has two differentials."

Hello Osman.

I hate to shock you like this, but I think your car has THREE differentials. 
 One at the front (non lockable), one in the centre (proabaly Torsen on your 
car) and one at the rear (lockable).

You need the front and rear diffs because your inner and outer wheels rotate 
at different rates when going round corners.  You need the centre diff 
because the average rotational speed of the front wheels is different 
(faster I think) than the average rotational speed of the rear wheels.

Paul
paul.heneghan@bbc.co.uk
1984 Audi 80 quattro
1989 Audi 100 Avant