R 20 P/U 2WD V8-379 6.2L DSL (1988)
Harmonic Balancer - Crankshaft Pulley: Service and Repair
Crankshaft Pulley & Damper
Torsional damper
1.
Disconnect batteries, then remove crankshaft pulley as described under CRANKSHAFT PULLEY REPLACE.
2.
Remove torsional damper, using torsional damper removal tool J-23523 and suitable pilot.
3.
Reverse procedure to install. Tighten bolt to specification Fig. 14.