So here's what I've been doing today.
I had BIC nylon rear subframe bushings, but they were too noisy, transmitting too much of the diff noise into the car.
If this were going to be a track car, I wouldn't care, as they do take out all the slop, but this is going to be a road car for 99% of its life.
I tried Raptor racing for rear bushings, but they were out and didn't expect to be ordering a set any time soon. So, I decided to make my own.
Not bushings, mind you, just a replacement spacer to ADD to the originals. The rubber on mine was in great condition, they just weren't thick enough
to take up the slack. So I just used them as molds for the additional thickness of a liquid urethane spacer, in 80A hardness.
My original bushings:
Cut out some drink cups- perfect diameter for this project:
To make sure they didn't seep, I silicone'd the cups on:
I placed in sockets to match the center shaft size. Both the insides of the cups, and the sockets were coated with a PAM cooking spray:
Liquid urethane mixed with hardener, and poured, making sure to match the levels between the spacers:
Now, I just have to wait two + days for full curing before the subframe is reinstalled.
Then I finally go on to the front suspension.