I'm not afraid to do it myself. I just didn't realize kits were available. I'll contact Then&Now and ask their opinion on which pump to rebuild. Thanks guys.

There was a metal can AC filter on the no-name pump. I opened it up and found no filter element inside.

The truck has electric wipers, so I don't need a dual pump. But the engine came to me with vacuum wipers and a dual pump. I changed to electric wipers (work great), but left the working well dual pump. Just plumbed the input to the output on the wiper chamber.

'57 GMC 102, Original 347 V8, HydraMatic, 3.08 rear gear, added A/C, disk front brakes, HEI, AFB carb, '98 Honda Black Currant paint. T-boned and totaled 10/12
'52 GMC 152 Stake Bed, Original 228, SM420, added A/C, HEI, disk front brakes, '67 Chev 3.55 rear gear. Gets used as a real truck.