Counter Gear Shaft. Chevrolet Export Chevy P42 Commercial Chassis 2000

For 1990-2009 cars

Important: Do not disassemble the countershaft. Individual components of the countershaft are not serviced. A damaged or worn countershaft must be replaced as a complete assembly.

1. Clean the countershaft in a suitable cleaning solvent. Air dry the countershaft.
2. Inspect the countershaft for cracks.
3. Replace a cracked countershaft.
4. Inspect the countershaft gears for the following conditions:

• | Scuffed gear teeth

• | Nicked gear teeth

• | Burred gear teeth

• | Broken gear teeth

• | High spots (Small shiny spots on the gear teeth mating surfaces) that could cause gear noise

5. Lubricate the countershaft bearings with Synthetic Manual Transmission Fluid GM P/N 12346190.
6. Replace the bearing assembly if any of the following conditions exist:

• | Roughness of rotation

• | Burrs

• | Pitted condition

7. Replace the bearing race and inspect the mating parts If the following conditions exist:

• | Scoring

• | Wear

• | Discoloration from overheating