Polyurethane vs. Polygraphite
02-08-2004, 11:24 PM
#1
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Location: North Olmsted, OH
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Car: 1984 Pontiac Trans Am WS6
Engine: H.O. 305 5.0L;L69
Transmission: T-5; Axle Ratio 3.73
Polyurethane vs. Polygraphite
Is there really a difference? Is one better than the other? Is PST the only company to only offer polygraphite?
02-09-2004, 12:15 AM
#2
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I think I remember reading that PST was just energy suspension with a different name. Not sure if the polygraphite actually makes a difference as far as noise goes over the polyeurethane.
02-09-2004, 10:21 AM
#4
I've got regular energy suspension poly bushings on my 69 camaro and the PST polygraphite kit on my 89, and I can't tell a difference between the two squeakwise. Of course I have heard some people say they get bad squeaks with poly, guess I just got lucky.
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