Product images and videos are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.
Drivetrain› Automatic Transmissions and Components
Trans Go Performance
TH700-R4 Corvette Servo Piston Assembly
SKU: T09L 7-2P
Moderate — 2–4 hours
Overview
Show original supplier description
Part #: 7-2P
From the factory, 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. This TransGo servo piston 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.
Vehicle Symptoms
- Soft or lazy 1-2 shift under light throttle
- Delayed 2nd gear engagement from a stop
- Transmission slips on 1-2 upshift during acceleration
- Inconsistent shift feel, sometimes harsh then mushy
- Worn 2-4 band causing weak 2nd gear hold
Relevant Conversations
- How to fix soft 1-2 shift in 4L60E transmission
- TransGo 7-2P Corvette servo install 4L60E
- Best upgrade for firmer 1-2 shift 700R4
- 4L60E shift kit vs servo piston upgrade
- Symptoms of worn 2-4 band in 4L60E
- Corvette servo part number 7-2P for Camaro
- Will TransGo servo fix delayed 2nd gear?
- 4L70E shift improvement without full rebuild
- Upgrade servo for towing with 4L60E
- Forum: 4L60E 1-2 shift harsh after servo swap
Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.
Fitment
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Specifications
| Brand | Trans Go Performance |
| Part Number | T09L 7-2P |
Videos
HOW TO INSTALL CORVETTE SERVO 4l60E/4l65E, Transmission Fluid and Filter, Torque Converter Selenoid
CHEAP TRANSMISSION UPGRADE MAKES A HUGE DIFFERENCE!
How To Install a TransGo HD2 Shift Kit & Corvette Servo in a 4L60E! — Feat. Our 1999 Chevy Suburban
BEFORE And AFTER CORVETTE SERVO 4L60E Driving Review Chevy Silverado Draggy Tested!!!!
4L60e Corvette Servo Install
K77895ABS-PTP, 700R4 4L60E 4L65E High Performance Corvette Servo installation performed by Phoenix T
4L60E Corvette Servo Install
4L60E SERVO
2004 silverado 1500 0-60 with 4l60e-hd2 shift kit & corvette servo
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