GM 4L60 700R4 4L60E Transmission Corvette Servo Piston Kit TransGo (7-2P) 1982+

$29.56
Brand
TransGo
Other Part Number
74905BK 7-2P
Type
Servo
Interchange Part Number
K77895B
Manufacturer Warranty
Unspecified Length
Fitment Type
Direct Replacement
Items Included
Piston, Piston Housing, seals and o-rings
Manufacturer Part Number
7-472
Surface Finish
New
Drive Type
4WD, AWD, RWD
Material
Aluminum
Performance Part
Yes
condition
New
700R4 4L60 4L60E Transmission
HI-PERFORMANCE
2-4 Band Servo Kit
fits all 700R4/4L60 Models 1982-1993

The TransGo 7-2P Corvette servo piston assembly fits 1982 to 2015 General Motors vehicles equipped with 700R4, 4L60/E, 4L65E and 4L70E automatic transmissions. From the factory, the 700R4 and 4L60E transmissions were equipped with 4 different servo sizes based on application. The Corvette-type piston was primarily found in the tuned, port-injected Corvette as well as the high performance Camaro and Firebird.

Features and benefits:

The TransGo 7-2P servo has the largest 2nd apply surface area of all the original equipment servos. Consequently, this servo provides a shorter, firmer 1-2 shift and with an increased apply area, provides the 2-4 band greater torque capacity in second gear only. Furthermore, the differential area between the band apply area and the release side of the servo piston alters the 3-4 clutch accumulation rate making the 2-3 shift firmer. Finally, this servo is ideal for high-performance applications and is fully compatible with our entire line of SHIFT KIT® Valve Body Repair Kit and Reprogramming Kits™.

Corrects/Prevents/Reduces:
  • Soft 1-2 and 2-3 shift
  • Increases torque capacity for 2nd gear
Includes:
  • Piston
  • Piston housing
  • Small scarf cut seal
  • Large scarf cut seal
  • Blue O-ring
  • Red O-ring

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