Features and Benefits:
Limitations of the GM 4L60-E, 4L65-E, 4L70-E OE input housing are the root cause of 3-4 burn-up in performance applications. The weak OE backing plate flexes during clutch apply, allowing heat to build up unevenly within the clutch pack’s limited space.
Sonnax Smart-Tech Input Housing Kit 77733-06K makes room for a taller clutch pack, anchored in place by a stronger backing plate, making it the only way to increase clutch capacity and protect against destructive heat.
Numerous other improvements to the housing ensure maximum durability and protection against failure in higher-horsepower, higher-pressure applications.
The housing also is available with a pre-installed heavy-duty input shaft (77733-12KA).
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