Quote:
Originally Posted by Fifty150hs
I put new poly bushings in both the lower control arms and the thrust arms. Shaking got worse. I think it could have to do with the design of the lower control arm poly bushings. The flanges of the bushings aren't in contact with the metal of the control arm like they are on the thrust arms. I suspect it is allowing the control arms to move.
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Replaced the lower control arms that i had installed poly bushings with stock replacements. Problem solved! As suspected I think it is a bad design for these bushings. The flanges of the ply bushings for the thrust arms rest against each side of the metal arm. The bushings for the control arms only rest against one side with the other side about 1/2" away. It allows too much flex. I could flex the flange with my thumb when i took the poly bushings out.