July 27, 2011 - There's a bit of tolerance in both bushings and in the car.
The bushings are made to within approximately 0.010". The polyurethane is also made slightly oversize in order to provide some extra longevity as the material wears. But for a race car designed to deal with rough surfaces, I needed the smoothest operation possible. So I measured each bracket on the car and shaved down the bushing to match. It was actually fairly surprising how much difference there was between the different factory brackets on the car.
It didn't take much, but it made the difference between a set of control arms that moved easily versus some with a bit of stiction. I'll pay for it down the road when the bushings wear prematurely, but that's acceptable.
tags: suspension |
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