M-Roadster rear drive train and suspension swap Hi, I was able to secure a complere M-Roadster complete rear drive train. Basically the whole thing from the diff to the and all the parts inbetween. At some point I may do an M50/M52 engine swap but wondered what the differences in the old differential and new differential would do. Not sure what the old one is (stock for a basic 97 318ti) vs. 3.25 one on the M-Roadster. Will my exisiting 4 cylinder have any problems driving it? What would be the gain/loss. Yeah I know the rear brakes are different and all that... that's a different issue. Just need to know about the diff right now. Also will the exisitng drive shaft just bolt up. Later, if I do an engine swap do you keep the 318ti drive shaft or do you need a different one. I may have the chance to pick up the M-Roadster drive shaft too but dont want to if it's not needed for a later engine swap. Any help would be appreciated, especially from someone who has also done this kind of swap. Thanks David |
the Mroadster complete rear end is a direct bolt-on. Once you have that install, Your pretty much a good candidate for a 6 cyl swap. You may need to find a way to get the emergency brake working though. Quote:
good luck. keep us updated. by the way how much did you happen to pick the rear end for? |
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Bolt on M-Roadster rear end Thanks for the confirmation on the setup. I have disassembled and reassembled the eBrake stuff before so I am reasonably sure that I can pull off using the existing one. I can't say what I paid for the complete rear end but, if you can find one, one should expect to pay over 2K. Quote:
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Ratio on M-Roadster Diff Yeah that is an issue. I may consider pulling my 3.45LSD from my e36 M3 track car and using that then upping my track car diff to a 3.64 or 3.75. Not sure If I can just swap the diff (and just swap covers) or if I need to swap internals. Quote:
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