Yes, a new pump on a old vacuum pump, in the truck. Old Power Steering pump leaked bad, the hose wore through the tank (rubbed)
this is a yard truck, I add about 1/2 pint of Power steering fluid each day, and one gallon of water (head gasket seeping) Trans wont lock the converter, seat is broke, bed it trashed, headliner gone, Blow outs on both back tires (no fenders) NO AC, Doors sag, NO exhaust... 330,000 miles... it just wont die...
So, I replaced the PS pump (got to where it would not run a full day and be able to turn) with a new one. ($75 from NAPA)
Problem was, pump had 4 studs, so I installed all the studs back in the new pump on the bench, but in doing so, was not able to "rotate" the pump in. so I took out all the studs, gently rotated the pump until it just slipped in, then bolted it on.
Actually only took about one hour, but greasy black as hell...
I did put a lot of assembly grease on the vacuum pump seal and on the seal area on the new PS pump before installing the new pump, to aid in the assembly so the seal would slip on easy. Fingering up inside the vacuum pump, the seal "felt" smooth and pliable.
Maybe this winter I will put on a head gasket (cant put a gallon of antifreeze in every day when it is 10 below). Problem is, Exhaust manifold is bad shrunk, and I am sure, wont go back on. Some of the screw holes on the P7100 are stripped, and It suspect it will need a lot of head work. With the Torque converter problem and the lower prices some of the used diesel trucks are bringing, it is hard to drop thousands into a 330000 mile heap.