Flex-a-lite 14548 Mechanical Fan Spacer

Fan Spacer, Aluminum, 1 in. Thick, 5/8 in. Pilot, Spacer, Bolts, Washers, AMC/GM, Kit.
Fan Spacer, Aluminum, 1 in. Thick, 5/8 in. Pilot, Spacer, Bolts, Washers, AMC/GM, Kit. Keep your fan in place. Belt-driven fans work best when they are 3/4 in. to 1 in. from the radiator's surface. Whenever you remove an original equipment fan clutch from your engine, you need to add a fan spacer. This will bring the fan back into the "sweet spot" in the fan shroud opening.