Holley Throttle Shaft Service Kit # HO20-48-1Holley Throttle Shaft Service Kit # HO20 48 1 Throttle Shaft Service Kit w Ford Kickdown, Holley 4160 with Side Hung Floats, Kit Throttle Shaft Included: Yes Throttle Shaft Bushings Included: No Main Body Gasket Included: Yes Mounting Hardware Included: Yes Quantity: Sold as a kit. Holley Throttle Shaft Service Kits These Holley throttle shaft service kits are designed to allow you to add a Ford automatic transmission kickdown lever, to your universal