TransGo GMC/Chevrolet THM350 Programming Shift Kit HD Non Lock-Up 1967-1981 (T44171)

This kit features Gear Command to allow automatic shift, Street or full race. Holds 1st, 2nd to any RPM. Backshift to 2nd and 1st at any RPM

Reprogramming Kit; Non Lock-Up Heavy Duty & Competition

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