Why isn't Polyurethane a good bushing material?

[BirdOnFire]

Since you guys seem to know alot about bushings, Where can i buy some stock replacement rubber bushings for my front lower controle arms?

[oil pan 4]

Stock replacement ones, you should be able to order them form any auto parts store.

[T-Punk]

you should at least replace the bushings with hard rubber though (the stock rubber leaves a lot to be desired).

[njspder]

1 degree of roll to 1 degree of twist, you jsut gave a perfect explanation of why everyone should be running rod ends.
rubber bushings, along with a gidft for undesired deflection also will have a greater tendancy to twist up and then unload like a spring since teh material is soft. yet another thing you can avoid with a set of poly bushings.

later
tim