Thanks, guys. Twisted, I will try your method.It sounds like a great idea.I guess I am ignorant. I thought the gears were supposed to be pressed on. I didn't know you were supposed to heat them.
I don't know if someone used a matched set or not. This is apparently a rebuilt block that has been put in at some time. It was bored and the crank turned. It is just an old ranch pickup, so it hasn't been hot rodded, but has pulled a horse trailer a lot.
Thanks for the help. Joe