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For 1990-2009 cars only

Info - Change to Flywheel to Crankshaft Attaching Bolts

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.

Parts Information

Part Number

Description

88958866

Crankshaft Kit

Parts are currently available from GMSPO.