The crown wheel and pinion (CWP) ratio is one of the main variables controlling the overall gearing on a rear wheel drive car, which means that changing it has a significant effect on vehicle performance. It’s extremely important to select the optimal ratio suited to engine characteristics and vehicle speed requirements, whether it’s for a road based trackday car or an outright competition machine that requires fine tuning of performance from circuit to circuit.
This is why leading high performance automotive drivetrain manufacturer Quaife Engineering is already experiencing strong demand for the Tran-X crown wheel and pinion (CWP) ratio sets, designed for the ‘English’, ‘Atlas’ and Sierra 7 inch axles as fitted to numerous popular rear wheel drive Ford and Ford based cars.
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