Polyurethane Bushings Ford Focus MK3 (ST / RS)

The Focus Mk3 keeps the independent rear end of the previous generation. The RS has all wheel drive and a different rear construction from the ST, and the bushes do not swap between them. The bushes are chosen by mounting position, not by assembly: a single arm usually has two different bushes.

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What you gain and what you give up moving from rubber to polyurethane is explained on the polyurethane bushes page.