Quote:
Originally Posted by Brian in Tucson
My experience with polyurethane bushing has been that they are much stiffer than OEM and don't dry rot like rubber bushings.
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Maybe you should disassemble this bushing no3 and check how it works. It's not made of rubber. The boots on top and bottom protect it from loosing grease. The joint itself is much more precise than any pu crap.
Problem is that it runs out of grease and isn't designed to be regreased (as in most modern cars). On the one hand it's "maintenance-free", on the other hand it must be replaced after the "lifetime" the car was designed for - in general 10 years. And i'm pretty shure that PU crap won't last even 10 years or longer. Also there is the "noise factor". PU tends to make much noise if it isn't grease perfectly. And because there is no rubber boot that protects the PU joint, the grease will go away pretty fast.
Just my 2 cents
Regards, Markus