Subject: | Change to Flywheel to Crankshaft Attaching Bolts |
Models: | 2002 Chevrolet and GMC S/T Utility Model (TrailBlazer, Envoy) |
2002 Oldsmobile Bravada |
with 4.2L Inline 6 Cylinder Engine (VIN S -- RPO L8) |
and Engine Build Date after July 16, 2001 |
Beginning with engines produced after July 16, 2001, the thread size of the bolts that attach the flywheel to the crankshaft has changed. The threads changed from a 10M X 1.5 to a 10M X 1.0.
If a crankshaft needs to be replaced for any reason, there is a crankshaft kit available, P/N 88958866. The new kit includes a crankshaft and new bolts. Exercise caution when replacing a crankshaft that you do not mix the bolts. Mixing the old and new bolts could lead to stripped bolts or bolt holes and possible engine, crankshaft or transmission failure.
Part Number | Description |
---|---|
88958866 | Crankshaft Kit |
Parts are currently available from GMSPO.