4L60E 4L60 4L65E 4L70E 4th Gear Super Hold Dual Servo Kit SONNAX 77767K 1982-up
Delivery time
You will receive your package in 2–5 business days within the contiguous U.S.
Delivery time
You will receive your package in 2–5 business days within the contiguous U.S.
Modified Item: No
Custom Bundle: No
Manufacturer Part Number: 77767K
Brand: Sonnax
Fitment Type: Performance/Custom
Non-Domestic Product: No
Drive Type: 4WD,AWD,RWD
Manufacturer Warranty: Unspecified Length
Sonnax 4th Gear super hold dual servo kit 77767K features 40% more apply surface area for greater holding power in GM 4L60 (700-R4), 4L60-E, 4L65-E and 4L70-E units. Vehicles with these transmissions often exhibit poor 3-4 shift quality and experience band failure in performance applications. Combine this servo kit with Sonnax 2nd gear servo 77911-03K for unmatched holding power and shift performance that's an easy in-vehicle install.
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