Hi-Performance CORVETTE SERVO KIT FOR A74905BK TH700R4 4L60E 4L65E 81040
Hi-Performance CORVETTE SERVO KIT FOR A74905BK TH700R4 4L60E 4L65E 81040
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Corvette-Style Servo Kit for Chevy and GM Transmissions
This Corvette-style servo kit for Chevy and GM transmissions, cross-referenced to part numbers A74905BK and 81040, improves transmission band holding power for crisp shifts on TH700R4, 4L60E, and 4L65E units.
Overview
This Corvette-style servo kit for Chevy and GM transmissions enhances the positive engagement of the second-to-third gear shift. Designed to provide firmer shifts and reduced transmission slipping, this Corvette-style servo kit for Chevy and GM transmissions is ideal for transmission rebuilders seeking to prolong band life. This simple installation adds significant performance advantages to daily-driven and towing vehicles alike.
Built For Performance
- Delivers up to 50 percent more band apply area than stock servos
- Machined from lightweight and high-strength aluminum alloy
- Includes premium sealing rings to prevent internal hydraulic pressure loss
- Ensures crisp, responsive shifts while reducing heat and wear
Fits These Machines
- for Chevy TH700R4 transmissions
- for Chevy 4L60E transmissions
- for Chevy 4L65E transmissions
On-The-Job Use
- Rebuilding automatic transmissions to handle increased torque levels
- Enhancing shifts in towing vehicles to reduce transmission wear
- Eliminating sluggish gear transition delays in street-performance trucks
Specs At A Glance
| Part Number(s) | A74905BK, 81040 |
| Application | TH700R4, 4L60E, 4L65E Transmissions |
| Item Type | Servo Kit |
Good To Know
Q: Can this servo kit be installed without removing the transmission from the vehicle? A: Yes, this kit can usually be installed while the transmission is in the vehicle, provided there is enough clearance along the transmission tunnel.
Q: Does this modification make the gear shifts overly harsh for normal driving? A: The shifts will be noticeably firmer and quicker, which actually reduces wear on the internal bands without being uncomfortable.
Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.
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