Quote:
Originally Posted by 94cobra69ss396
A lot of the offroad racing trucks use heims because rubber or poly just doesn't last. Our buddy use to race a class 8 F150 and he used poly bushing in the trailing arms. We had to replace them during the race because half way through they would already be worn out or missing.
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Poly, like rubber, is available in different grades of hardness./commpliance.