1985 K30 P/U 4WD V6-262 43L: Automatic Transmission Shift Modulator Info
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.