Extension Housing Clean and Inspect

1. Clean the rear extension housing in a suitable solvent. Air dry the housing.
2. Inspect the extension housing 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 machined mating surfaces for flatness (Check the mating surfaces with a straight edge).
6. Use a fine mill file to dress minor scratches or burrs.