When I originally did my read suspension, I used rubber in the arms and sphericals at the knuckle. This was the best solution to keeping NVH down, while still allowing better articulation and control of what the tire is doing under various loads. I can tell you my transmission causes more NVH than I have ever heard from the rear of my car.
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* My SR20VET* Does your VTC gear rattle in your S14/15 SR? PM me.
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