b mike w 0 Report post Posted October 4, 2009 hey guys my diff has started making a knocking and whining sound while driving. Is it r**ted? also i have found a whole rear setup (subframe, diff, disc brakes) on trademe for a 1990 E30 and was wondering if anyone had any idea if it will bolt straight into a 1986 E30? I am not to sure cos it has disc brakes on it and my E30 is currently running drum brakes. If it does just bolt up is there much work to be done to convert to discs from drums? Quote Share this post Link to post Share on other sites
Shady 0 Report post Posted October 4, 2009 Im sure all E30 diffs are the same, but the performance E30s may be better...should still interchange? As for the drums-discs...discs are better. Shouldnt be hard to change You just need the calipers. Someone else would know more than me though. Quote Share this post Link to post Share on other sites
mark247 38 Report post Posted October 4, 2009 hey guys my diff has started making a knocking and whining sound while driving. Is it r**ted? also i have found a whole rear setup (subframe, diff, disc brakes) on trademe for a 1990 E30 and was wondering if anyone had any idea if it will bolt straight into a 1986 E30? I am not to sure cos it has disc brakes on it and my E30 is currently running drum brakes. If it does just bolt up is there much work to be done to convert to discs from drums? All e30 diffs are interchangable but they are not all the same. There are medium and small case. Quote Share this post Link to post Share on other sites
Guest FrantiC Report post Posted October 4, 2009 Im sure all E30 diffs are the same, but the performance E30s may be better...should still interchange? As for the drums-discs...discs are better. Shouldnt be hard to change You just need the calipers. Someone else would know more than me though. Dude you need more than calipers. You need the entire trail arm that fits brake rotors,. Yes the rear end will bolt up fine. Not too sure if brake lines or anything will be a worry, but everything subframe, diff, axle wise will bolt up into your car. May want to check your diff bolts aren't loose. Or driveshaft. The driveshaft can cause alot of knocking etc. Quote Share this post Link to post Share on other sites
b mike w 0 Report post Posted October 4, 2009 okay I will check that. thanks for the help guys. even if the bolts are just loose do you think it would be worth changing to a rear disc setup? Quote Share this post Link to post Share on other sites
Guest FrantiC Report post Posted October 4, 2009 okay I will check that. thanks for the help guys. even if the bolts are just loose do you think it would be worth changing to a rear disc setup? I don't see the point TBH, Unless the drums are giving you issues or you are tracking the car or something I wouldn't bother with it unless you pick it up cheap. Bit of a job changing the rear subframe out.. Quote Share this post Link to post Share on other sites
