A Motors Truck Repair Manual will come in handy. You say you have a Motors car manual so you already know how valuable they are. I just glanced at my truck manual and there's several pages on the Hydra-matic with adjustments, diagrams and troubleshooting tips.

"It's just a phase. He'll grow out of it." Mama, 1964

1956 Chevy 1/2-ton 3100
1953 Chevy 6100 "The Yard dog"
1954 GMC Suburban Now with a new proud owner.