Fits ParkSense Rear Park Assist System Or ParkSense Front/Rear Park Assist System, Power Lumbar Adjust, Rear Power Sliding Window Or Rear Window Defroster; Exc. Load Leveling and Height Control Or Radio/Drv Seat/Mirrors/Pedals Memory Or Keyless Go; Crew Cab; 6'4" Box; Lt. Duty 4WDor ParkSense Rear Park Assist System Or ParkSense Front/Rear Park Assist System, Power Lumbar Adjust, Rear Power Sliding Window Or Rear Window Defroster; Exc. Load Leveling and Height Control Or Radio/Drv Seat/Mirrors/Pedals Memory Or Keyless Go; Crew Cab; 5'7" Box; Lt. Duty 4WD