Ahmedsinc 414 Report post Posted April 14, 2013 Just wondering if it's possible to modify the E36 325/328 rear subframe to accommodate a large case diff without resorting to trying to find one off an M3. Looking at a V8 project some time in the nearish future & would like a few hints if I can get 'em. Ta Quote Share this post Link to post Share on other sites
thorburn 120 Report post Posted April 14, 2013 You could modify it but it'd be cheaper to get an m3 back end. You still need half shafts etc to make it work I'm sure a medium case will hold up to most of the punishment you could give it. Quote Share this post Link to post Share on other sites
Ahmedsinc 414 Report post Posted April 14, 2013 Sweet. Was wondering if it would just be a case of fabricating new brackets or if it would be a massive pita. Probably option 2. Are there any sites out there that list maximum torque loads for BMW diffs & gearboxes? Quote Share this post Link to post Share on other sites
BM WORLD 1261 Report post Posted April 14, 2013 med case good for upto about 400hp any way you loose RWKW with large diff , I lost about 8-10rwkw when changing the e34 544i med diff to a large case diff. Quote Share this post Link to post Share on other sites
Michael. 2312 Report post Posted April 14, 2013 Heh, I worried about this with my V8 setup using a 188mm differential After doing some research on the matter & taking into account I'm running less than 300hp / 400nm it seems there's nothing to worry about, many M50/M52 turbo guys are putting out another 50% on top of those figures and still not breaking the diff. Quote Share this post Link to post Share on other sites
