Any DIY for rear subframe bushings?

[pbonsalb]

I am going to do this soon. Have done it on other BMW, but always like to read about the job first when possible. Present plan is to disconnect parking brake cables at handbrake, remove calipers and hang them if possible or disconnect the brake lines if not, and lower complete subframe with diff and axles. Putting poly pushings in so install will be easier than removal, which will require cutting since I cannot use my press unless I remove everything from the subframe and that is more work. Doing diff bushings as well.

[flipmeraz]

http://www.m3post.com/forums/showthread.php?t=1067674

[pbonsalb]

Thanks. That will help get me started.

[2K11SGCoupe]

I have ordered diff bushings from Turner Motorsports and am waiting for MRF Engineering to complete a new batch of solid subframe bushings.

Just one question for those of you doing this yourselves, how did you index the rear subframe to the front subframe of your car? Sounds as though a jig or frame tool is recommended to ensure that the subframe gets fastened to the unibody properly aligned.

I realize that the vehicle suspension will require being aligned following this procedure, but how do you ensure the subframe is not installed misaligned while doing this job as a DIY?

[nholmes]

Originally Posted by 2K11SGCoupe

I have ordered diff bushings from Turner Motorsports and am waiting for MRF Engineering to complete a new batch of solid subframe bushings.

Just one question for those of you doing this yourselves, how did you index the rear subframe to the front subframe of your car? Sounds as though a jig or frame tool is recommended to ensure that the subframe gets fastened to the unibody properly aligned.

I realize that the vehicle suspension will require being aligned following this procedure, but how do you ensure the subframe is not installed misaligned while doing this job as a DIY?

I can't speak about the rear of the car, but I fully dropped the front to do my rod bearings and it only bolts back up to the frame of the car one way. It's wedge shaped, so you can't get it wrong. The bolts are different sizes too, so you can't even fuck that up if you wanted to.

[pbonsalb]

I am confident realignment will be sufficient for my street use. There is some play in mounting and a jig to "square" all the holes would be ideal and for a race car maybe more important.