Gates belts, the Fleetrunner is a lifetime belt it's also about 10mm shorter but will fit. The key is to work the slack up to your highest pulley' the water pump on the main drive and then fully depress the tensioner to slip it on. The best way to get th belt on the supercharger drive is to work the slack over to the SC belt tensioner, fully depress that tensioner and slip the belt overthat slick pulley