Water pump pulley

Oldmanmopar said

. Cruising at 75 -80 MPH with a 5500 converter and 456 gears 28 inch tires

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WOW! What rpm were you turning while cruising 75 mph with 4.56 gears and a 28” tire? 5000? I have 3.91 with 28” tires and turn 3000 at 60mph. That thing must have been singing!