Having never done subframe bushings on any car in my life I figured I would take advantage of the e30 M3 since it was already jacked up, unmovable at the moment and had quite a few components removed in the rear. I figured I would do the subframe bushings and rear trailing arm bushings on it first. Then I could use what I learned to quickly do the subframe bushings, driveshaft/CSB, and rear trailing arm bushings on the e30 325is.
I spent several days slowly working my way on removing the rear subframe. Everything went relatively smoothly outside of striping a bolt on one of the brake lines. You can call it a failure to use the correct tool, flared wrench, or you can call it 24 years of age. I like to the the latter. The most challenging part was getting the subframe to actually drop. The bushings were seized to the body, but after some suggestions from a few e30 buddies I got it to drop.
Not sure if you can see it, but part of the aluminum piece of the subframe bushing is broken. Yep, still in the body. That should be fun to remove.
A few things I'm going to do while the subframe is out.
- Clean subframe (sandblast?) and apply POR-15 to protect it.
- Replace subframe and trailing arm bushings
- New bolts, nuts, washers, etc on subframe and trailing arm components
- Replace cut brake line
- Replace sway bar bushings
- If I can find them cheaply, replace the ABS sensors
I don't really care about anything else getting replace that is connected to the subframe since I know I can easily do it later down the road.
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