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      10-16-2020, 02:36 AM   #26
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Drives: 2011 E90 M3 6MT
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Originally Posted by tsk94 View Post
That's correct, most of the arms have one end spherical and the other as a rubber bushing - I believe one of them is spherical both ends. Not sure on the main control arm though, I was pretty sure at least one end was a rubber bushing.

Regardless of the specifics, it's still an upgrade to go with the rear set of SPL or GC rear arms. More adjustability and full spherical mounts. The M3 GT4 replaced bushings in the rear arms and trailing arms but retained the stock arms. However I believe at the time this was mandated by rules - the bushings could be replaced but not the arms. Having one end a ball-joint is better then nothing, but a rubber bushing on the other end will result in flex/distortion under load.
Yea no doubt the upgraded arms are an upgrade.
E90M 6MT Slicktop Single Humper in need of a diet