RJC Underdrive Race Crank Pulley
Shown left of a stock dia. Race Crank pulley in the picture, this Underdrive pulley was designed for guys that would like to run electric water pumps on their Turbo Buicks. The size of this pulley is crucial for the proper operation of the serpentine belt system when running an electric water pump. If the pulley was any bigger or smaller there would be belt rubbing problems. This pulley takes all of the guess work out for you and makes electric water pump installation easy.
Race Crank Pulley Underdrive Shown in the upper left corner. shown with our stock dia Race Crank Razor Style pulley for size comparison.
