It was a nightmare to work on 50 years ago, and I'll bet the thing hasn't improved with age. The fluid drive had a spring loaded ceramic mechanical seal like what's in most water pumps, and they were notorious about failing and leaking all the fluid out of the drive unit. The terribly heavy transmission, clutch, and fluid drive unit had to be removed to change the seal, and then reassembled very carefully to avoid damaging the new seal. I finally figured out a way to lock out the fluid drive on my Chrysler with some creative welding, and drive it like it had a normal clutch, which made a noticeable improvement in the performance by eliminating the built-in slippage of the fluid drive.
Jerry
