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Hummer H3 V8-5.3L (2008)06 · Transmission and Drivetrain
06 · Transmission

Flex Plate: Specifications (page 2 of 3)

Make
Hummer
Model
H3
Engine
V8-5.3L
Year
2008
Section
Flex Plate
Transmission and DrivetrainSpecifications · page 2 of 3
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Flex Plate: Service and Repair

Automatic Transmission Flex Plate Replacement

Removal Procedure

1. Remove the transmission. Refer to Transmission Replacement (3.7L)  (See: Automatic Transmission/Transaxle/Service and Repair/Removal and

Replacement/Transmission Replacement (3.7L))Transmission Replacement (5.3L)  (See: Automatic Transmission/Transaxle/Service and
Repair/Removal and Replacement/Transmission Replacement (5.3L)) .
Important:  Note the position and direction of the engine flywheel before removal.

2. Remove the engine flywheel bolts.
3. Remove the engine flywheel.
4. Clean and inspect the engine flywheel. Refer to Automatic Transmission Flex Plate Cleaning and Inspection  (See: Engine, Cooling and

Exhaust/Engine/Service and Repair/Overhaul/Component Service and Inspection/Automatic Transmission Flex Plate Cleaning and Inspection) .

Installation Procedure

Important:  The flywheel does not use a locating pin for alignment and will not initially seat against the crankshaft flange, but will be
pulled onto the crankshaft by the engine flywheel bolts. This procedure requires a three stage tightening process.

1. Install the engine flywheel to the crankshaft.
2. Apply threadlock to the threads of the flywheel bolts. Refer to Adhesives, Fluids, Lubricants, and Sealers  (See: Engine, Cooling and

Exhaust/Engine/Specifications/Sealers, Adhesives, and Lubricants) for the correct part number.

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Parts & tools for this job For 2008 Hummer H3 5.3L

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