Tim Keefe, A friend gave me a CC70 for parts. I decided to rebuild it instead of parting it out. The transmission was a real mess, filled with water and about a half inch of dirt. I removed the axle housings and the rear cover plate to clean it. I ordered one of those 1 quart pressure guns to clean it with. I used kerosene and kept spraying from every possible angle. I turned the gears several times to get everything possible flushed out. When I finished the tub had quite a pile of dirt and grit in the bottom. When I get it reassembled I will drain the transmission after some use to check for any leftover residue. The shift lever works smoothly even though it still has not been refilled with oil.