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Originally Posted by Artem  Thank you everyone for the suggestions! I think I'm almost there. Which subframe + T/As did you end up using, Strawman? 318TI stock with poly bushings? I got a set of powerflex complete rear end bushings from a while back, I will definitely put those in before running it daily, mine are giving up the ghost. I also got a specific question which I doubt the manual would answer: I will have a Z3M subframe and diff, but no axles or trailing arms. What is the difference between the stock E36ti/Z3 subframe and the Z3m subframe? |
There is a big difference between the axles and trailing arms. MZ3 trailing arms are quite a bit heavier and have larger bearings; axles are equally different. MZ3 have wider rear trailing arms than all Z3 models, but retain a shallower hub. Due to this mix, this setup allows for E36/E46 fitment wheels. This is a good site to answer differences
http://clavinzero.com/e30-5-lug/ Look at option 4 MZ3 option. Try this guy for parts: Freddy Melendez
rebuilder1963@comcast.net. I bought a right rear trailing arm and axle (I bent it after being run off the road by a F350) and he had several MZ3's he was parting. I run Ireland engineering bushings in the subframe and stock BMW at the differential. Here in WA Haury's Lakeside collision has a subframe support method that I used - its not Randy Forbes version by any means but it hasn't failed in my MCoupe - Really depends on how hard you are on it. Either way do yourself a favor and don't be in too much of a hurry to pass up opportunities to do it right. Subframe reinforcements are critical Ireland engineering has a kit and while you are there you will want to pick up a set of caster/camber weld on adjusters for the rear. Not sure how far you want to go but if you plan to corner balance you will want the adjusters.