65/86  Crankshaft Key  (Engine Lower)

With 3.8L (6-232) Engine (Crankshaft)
With 4.2L (6-258) Engine (Crankshaft)
Crankshaft) Timing Sprocket Key

63/64  Camshaft Gear

With 6-230 Engine
Camshaft Timing Gear

71/86  Chain, Timing  (Engine Lower)

used with 5/8"(.625") wide sprockets

71/86  Sprocket, Camshaft  (Engine Lower)

TYPE: 5/8" WIDE
Position: Front, Rear

79/91  Chain, Timing

used with 1/2"(.500") wide sprockets