I. Countershaft

1. Clean the transmission case in a suitable solvent. Air dry the transmission case.
2. Inspect the transmission case for the following conditions:
^ Cracks
^ Scratches
^ Damaged threads
^ Burrs
^ Nicked mounting surfaces
^ Damaged sealing surfaces
^ Damaged front or rear bearing bores

3. Replace a cracked housing.
4. Clean up damaged threads with the correct size thread tap.





5. Inspect the countershaft bearing race bore for the following:
^ Wear
^ Scratches
^ Grooves

6. Inspect the machined mating surfaces for flatness. Check the mating surfaces with a straight edge.
7. Use a fine mill file to dress minor scratches or burrs.
8. Replace the transmission case if the countershaft bearing race bore is worn or damaged.