Fits Cab Chassis; Foam; Regular Cab Chassis; Lt. Duty 4WDor Foam; Regular Cab Chassis Wheelbase 3; Lt. Duty 4WDor Foam; Regular Cab Chassis Wheelbase 4; Lt. Duty 4WDor Cab Chassis; Foam; Crew Cab; 173.4" Wheelbase; Lt. Duty 4WDor Cab Chassis; Foam; Crew Cab; 197.4" Wheelbase; Lt. Duty 4WD