Thank You all for the info,
Longbox 55 I had not run across Fifth Avenue before,a little pricey but looks worth it. I had thought the solenoid's were unavailable.
Cletus, I thought I had my truck listed, sorry, It's a 1949 3100, almost all stock. The transmission I picked up is a from a car I'm sure, but I don't know anything about it. I have not had time to measure the shaft size, could I just swap the levers?
Moonlight, Thanks for the info, I plan to install a 77 K5 Blazer rear end 3.73 ratio. This be the first real departure from stock for me, so I guess it's why I have procrastinated so much.
Deve, Just let me say Thank You, I have spent a lot of time looking over your work.