Express 3500 V8-6.0L VIN U (2004)
1. Clean the input shaft in cleaning solvent.
2. Inspect the input seal surface (1) for excessive grooves or damage.
Important: Do not attempt to smooth any roughness in the bearing journals.
3. Inspect the bearing journals on the input shaft for the following conditions:
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The drive gear bushing (2)
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The rear support bushing (4)
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Scoring
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Pitting
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Brinelling
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Excessive wear
4. Inspect the input shaft planetary carrier assembly splines (3) for damage or excessive wear. Witness marks at the location of the gear is normal.
5. Replace the input shaft if any of the above conditions are found.
Front Output Shaft
1. Clean the front output shaft in cleaning solvent and air dry.
2. Inspect for spun bearings at the front output shaft bearing areas.
3. Inspect the front output internal splines and driven gear splines for damage or excessive wear.
4. Replace the front output shaft if it is damaged.
5. Inspect the cup plug in the front output shaft for leaking.
6. Replace the cup plug if it is leaking.
Rear Output Shaft
