The TCI Powerglide Dual Ring Servo is a drag race servo piston for the GM Powerglide. The dual-ring design seals the servo bore in high-performance builds. Replacement Teflon rings and a gasket are offered separately under 743205.
- Fits GM Powerglide
- Dual-ring servo piston
- Designed for drag race use
- Replacement Teflon rings and gasket available (743205)
- Part number: 743210
FAQ
What is the TCI 743210 servo?
It is a Powerglide dual-ring servo piston for drag race builds.
Which transmission does it fit?
It fits the GM Powerglide.
Are replacement seals available?
Yes, replacement Teflon rings and a gasket are offered under 743205.

