I plan to replace all the rear bushings on my '64 wagon. I have already done the front with rubber, but am thinking about using poly in the rear. The large rear trailing rod is only reproduced in rubber, but it appears that all the other bushings, including the panhard rod bushings, are available in poly. Any thoughts? I have an IPD front sway bar and the engine was done by Sweedish Speed in Perris, California and produces about 125hp. I also have an M41 trans. The car is only a weekend driver.