Your cart is empty.
Your cart is empty.Product Description
High Performance Corvette Servo Piston Kit Upgrade A74905BK
For 1982-On Corvette Style TH700-R4 4L60 4L60E 4L65E. 2nd gear Auto Transmission
High Performance Corvette Servo Upgrade Kit
Fitment References: For 1982-On Corvette Style TH700-R4 4L60 4L60E 4L65E. 2nd gear Auto Transmission servo piston Kit
Package Content: 1 X Inner Housing Servo (Donut) Piston, 1 X 2nd Apply Piston (Inner) 1.642" Servo, 1 X Inner (Teflon) Scarf Cut Seal Ring (These are not solid rings), 1 X 2nd Apply Piston (Outer) (Teflon) Scarf Cut Seal Ring (These are not solid rings), 1 X O-Ring, Servo Cover (Inner Red), 1 X O-Ring, Servo Cover (Outer Blue).
Function: Creates a much firmer 2nd and 3rd Shift.
Step To Step Installation
Customer
2025-07-26 13:27:52
04 Avalanche with 280k miles, shifting was lazy between gears and slow under heavy throttle. After some research I found this servo kit and decided to give it a shot. I’ve put a few hundred miles on since swapping it in and I’m extremely happy with the results. Nice firm shifts under light or heavy acceleration. Would recommend to anyone with this generation gm.
Branden
2025-05-19 15:17:10
Didn't install needed o rings and this was the quickest option to get.
Nicolas gutierrez
2025-02-05 10:45:12
Installed this and have had it for a few months now, it made a massive difference in shift feel and was an amazing upgrade for cheap, totally worth it
Richard Nielsen
2025-01-07 15:44:20
I cant feel any difference with how my truck shifts after the Install. But I wasn’t expecting much to start with.
Recommended Products