Sonnax 77763-01 boost springs offer a low cost, direct replacement alternative to the OE springs in GM 4L60, 4L60-E, 4L65-E and 4L70-E units. Engineered for the application, the 77763-01 boost springs are precision manufactured from high quality spring materials.

Low-cost direct replacement
Precision manufactured
Made from high-quality spring material

More From This Category

Sonnax Forward Clutch Hub Front Washer, GM, Th400/425, 4L80E/85E .078in. 5/B

Sonnax Forward Clutch Hub Front Washer, GM, Th400/425, 4L80E/85E .078in. 5/B

$75.76