I've got a 54 3/4 ton w/hydramatic. It won't upshift out of first. I just have 1st & rev. I had it up to 10mph w/no shift. I just had the governor and rear pump out of it as manual says thats the problem. Couldn't find anything wrong with them. Gov weights shift nice and smooth and pump pumps when turned by hand. put them back in and same problem. Any ideas where to look next? or does anyone know of a rebuilder in the Carolinas? Thx