What about 1/2 ton to 1 ton?
Bleeders are the same as on bigger trucks (for A-D/ND years).
Vacuum bleeder and pressure bleeders work the same. For the pressure bleeder, same master cylinder cap size on my 54/55 2-ton GMC COE as is used on my 1/2 ton 54 Chevrolet 1/2 ton.