Consistent transbrake release is mandatory for a successful ET racing effort. To improve transbrake release, rebuilders typically replace the OE return springs with stiffer springs, such as the Sonnax reverse clutch return springs 28320A. These extra-stiff springs can deflect the OE retainer, resulting in a loss of intended load. Sonnax heavy duty reverse clutch spring retainer 28709 is stamped from high-strength, roll-tempered steel. This additional strength resists deflection better than used OE retainers made of mild steel. For optimum reverse clutch release, use Sonnax reverse springs 28320A with the 28709 retainer.

Faster transbrake response time
Stronger-than-OE materials

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