Cav rear diff from 80q

[1998s4b5]

Hi, i have a cav diff from Audi 80 2,8 quattro but i cant find what kind off ratio it has.

 

[Garrett 69]

I assume you mean CSV diff? What's the code stamped on the diff?

AEX if I remember correctly is 4.55. Other ratios are 4.11 and 4.87 but I can't remember the codes.

Having said that, ratios did change slightly through the 80's production run so there will likely be half a dozen more variances.

 

[1998s4b5]

The code stamped on the diff is CAV. If this diff is 4,11 im going to put it in my s4 b4