I just made the swap to an H41 and built an Orion for lower gears, so I'm offering up the original H42 4-speed. $400 OBO — Local pickup only.
First year of the 4-speed. 16-spline output for the one-piece TC. Not sure of mileage, but probably...
Sand blasted and powder coated all the metal bits, and painted the plastic ones. New foam and even repainted the letters for the control. I finished cleaning the core this evening, so will put it all back together tomorrow.