When I changed my water pump 5 years ago, the pulley was already on. I couldn't figure out if it was pressed on or not. My 350 series Jimmy has the 248 and the wide pulleys.
I think it was about $65 and I had to turn in my old one for a core. The Filling Station has them as well........
I picked it up from Carquest right down the street.............. eek


*** GMC ***