Palazzo 474 Report post Posted January 15, 2018 Does anyone know the diff ratio on a E30 325i auto? Were there several different ones? Most common? And did it change on an LSD? Cheers. Quote Share this post Link to post Share on other sites
hotwire 352 Report post Posted January 15, 2018 3.73 for both auto & manual from what i've seen. Not seen many 325i's but from memory they have been the same Quote Share this post Link to post Share on other sites
Palazzo 474 Report post Posted January 15, 2018 I have a M325i, it’s 3.64. 3.73 is close though, thanks. Is it easy to have the ratios swapped? Sorry for the uninformed question. Quote Share this post Link to post Share on other sites
hotwire 352 Report post Posted January 15, 2018 M version may well have come with 3.64. Have had a couple in the workshop in the last couple of months but not looked at the ratios on them. What are you wanting to achieve? Quote Share this post Link to post Share on other sites
Palazzo 474 Report post Posted January 15, 2018 Looking at picking up a second hand diff from a 325i auto, wasn’t sure what ratio was likely to be in it. And it should be LSD. Quote Share this post Link to post Share on other sites
BM WORLD 1283 Report post Posted January 15, 2018 most ones i have seen have been 3.64 , most jap import autos wont be lsd Quote Share this post Link to post Share on other sites
hotwire 352 Report post Posted January 15, 2018 Typically the Euro 325i is not LSD, unlike M. Most SA 325's had LSD Quote Share this post Link to post Share on other sites
Palazzo 474 Report post Posted January 15, 2018 I’ll update it when I know or have it in my hands. Quote Share this post Link to post Share on other sites
