C 3500 1 Ton Pickup 2WD L6-292 4.8L VIN T 1-bbl (1984)
Shift Modulator: Service and Repair
1. Remove modulator attaching screw and retainer.
2. Remove modulator assembly from case and discard O-ring seal.
3. Remove modulator valve from case.
4. Reverse procedure to install, using a new O-ring seal.