The Harrop Gilmer style rear drive pulley kit is for those wanting to push their Superchargers to the limit with a no slip option for high power applications.
The Gilmer style toothed rear pulleys prevent belt slippage and guarantees transmission of drive to the supercharger's rotating group, preventing loss of power and producing that wonderful supercharger whine.
Welcome to Harrop Engineering
Since 1955, Harrop has engineered and manufactured world-class systems and solutions for OEMs, Race Teams and the Aftermarket. #harrop