[mickmate]

Urethane bushings are the ideal compromise between a harsh or mushy feel and how much feedback your car transmits from the road. They are also good for durability with low maintenance. Most cars I see use about an 80 for hardness which is generally black in color. We have used some solid suspension bushings in race cars which can also double as an eccentric for suspension adjustment but the ride is too harsh for a street car and maintenance is also an issue. Toss any rubber bushings, they mush out or crack up depending on whether they are wet or dry. Urethane also turns nicely for custom sizes, just use a high rake angle. If you check McMasters website they not only supply alot of this stuff they have great explanations of the properties and applications at the beginning of chapters.