Thanks for the ID Wrenchbender.
Will that pump work OK with the PS box from a 78 1/2 ton Chevy truck ? I robbed the front suspension, brakes, and steering from a 78 and have it mounted under the 53 frame. The reason I ask is that I have heard stories of mxing and matching PS pumps and mostly rack and pinions where the pressure is too high and blows out the seals.