diff ratio question

[Jaswan]

hi,

im fitting a 6 speed 01E into my (originally kv engined) b3 coupe quattro.

i have assumed that the rear diff will be the right ratio, but can anyone confirm before i look stupid when i cant move the car

haha

thanks in advance

[quattro-nick]

yes,they are both 4.11

[Jaswan]

thank you!

any idea id the CQ diff is weaker than the S2?

for some reason i assumed they were the same rear diff?

[_ShurikeN]

Your originally equipped diff should have been 4.11, the only 3.89 Coupe diff is CAU from AAH. But keep in mind that not every 01E is 4.11: most early ones are 4.11, but there are later 01E-transmissions with other ratios.

[quattro-nick]

b3 diff is equally strong as s2 diff
urquattro has also ratio 3.89
you can google gearboxcode and see witch ratio it has
Look down the sheet from this link!

http://forums.vwvortex.com/showthread.php?6103540-gear-ratios-for-audi-trans-codes