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"I still think that rubber bushings are best for the lower a-arms unless you're race preparing a car.
In which case, you can just skip the wimpy plastic bushings and go HARD; solid metal bushings with thin (~.020") plastic sleeves, for instance. This is typical with any seriously prepped SCCA ITB 140, in both upper and lower A-arms.
Dunno, 'cuz I've never raced one, but it could be the 120's actually benefit from the small amount of compliance afforded by plastic bushings... the camber curves are definitely not the same (120 vs 140).
--
Gary L - 1971 142E ITB racer, 73 1800ES, 02 S60 T5 BlueBrick Racing
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