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

RTS Clutch & Billet Black Flywheel Assembly, Xtreme Clutch Kit, For Ford V8, Bronco Bolt Pattern 10-Spline, 1 1/16 in. Diameter Shaft, 11 in. Diameter

RTS Clutch & Billet Black Flywheel Assembly, Xtreme Clutch Kit, For Ford V8, Bronco Bolt Pattern 10-Spline, 1 1/16 in. Diameter Shaft, 11 in. Diameter

$969.57

Sonnax Reverse Clutch Pressure Plate, Powerglide, Each

Sonnax Reverse Clutch Pressure Plate, Powerglide, Each

$67.64