Demco 5th wheel frame brackets are engineered to fit all major makes and models of trucks. Demco offers three different mounting styles for our 5th wheel hitches; Premier-Series, SL-Series, and UMS-Series. Many of them have “no drill” options for a simpler, time-saving installation. The SL-Series uses a manual slider rail that runs front to back in the truck bed and attached the bed rails with six bolts to connect to the brackets underneath. The 8553009 Hijacker SL-Series Frame Mounting Bracket Kit from Demco is compatible with 1988 to 1998 Chevrolet Silverado/GMC Sierra 1500 and 2500 Trucks (6.5' and 8' boxes) and 1988 to 2001 Chevrolet Silverado/GMC Sierra 3500 Trucks (6.5' and 8' boxes). Refer to Demco's recommendations to ensure a model specific fit before purchasing.