4L60E 4L60 4L65E 4L70E 4th Gear Super Hold Dual Servo Kit SONNAX 77767K 1982-up For Sale - New and Used

4th Gear Super Hold Dual Servo KitTH700R4 4L60E 4L65E 4L70E GM TRANSMISSIONfits all varieties of these transmissions 1982-UP

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.

• Patented dual-piston design with 40% more apply delivers greater holding power
• D-ring seals prevent pressure loss
• Use with OE, “Corvette” or Sonnax 2nd Gear servo assemblies

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