Let the rebuilder worry about the pulley. Just make sure that whoever rebuilds the water pump puts the (hopefully slotted) bolt back in place before they put the pulley back on. That bolt is the kind of thing that gets misplaced in a shop.
'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.
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