Diferents diff.

[joan131]

Hello, can the one who knows who is the differential short mas that the fiat mounted 131, be 9/40(4.444 or 5,375)? In 124 relatives it  was 9/40 in the 131 I believe that not. I am looking for the differential short (9/40etc..). Does someone know it? THANK YOU.

[sid131]

full chocolate or just coated?

[sportman]

9/40  is  4.44
i have diverend types for my rallycar
8/43  is shorter 5.37

[joan131]

8/43 is it only for to the fiat 131 abarth with independent suspension or also it is made for 131 "normally"? 

[wak131]

5,37 is too short for a normal 131, i think, the "shortest" diff ratio for the weakest 1.3L mirafiori is 4,3 or 4,1.

[david]

The 1300s were 10/41 which was what I fitted in my sport for a couple of years until it went bang, back to a 10/39 now

[miro-1980]

Abarth used quite  range of diff ratios ...

6,83 = 41/6
6,42 = 45/7
6,143 = 43/7
5,375 = 43/8
4,875 = 39/8
4,625 = 37/8
4,444 = 40/9
4,3 = 43/10
3,9 = 39/10
3,63 = 40/11

M