Description
TH400 TransGo Reprogramming Kit, 1965-On, 400-1&2. (With Gear Command.)
Heavy duty and high performance valve body calibration and internal upgrades for General Motors TH 400 automatic transmissions.
Features:
- Automatic shift
- Street or full race
- Holds 1st and 2nd to any RPM
- Back-shifts to 2nd and 1st at any RPM
- Tow&Go™ or competition
Also Includes:
- (2) different size 1-2 shift valves
- Direct clutch high rate return springs
- Heavy duty intermediate pressure plate snap ring
- 3rd clutch dual feed separator plate
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