I had heard the shortened shaft pump's pulleys tended to slip after being pressed down. but I've been using a shortened shaft pump for years with no trouble. I did add a fan shroud that reduced the temp in half. Amazing difference the fan shroud makes. Noticable.


1947.2 Chevy Panel Truck 1-ton
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1955.2 Chevy Suburban
1955.2 Chevy 6700 Bus/RV