Fox 2.0 Performance Series 11.1in. Smooth Body R R Shock Aluminum Std Travel Eyelet Ends Black Fox Performance Series 2.0 Reservoir smooth body shocks (Custom Shocks) 17+ Ford Superduty Rear, 2.0 FOX Shock PS, R R, 12.1", 0 1" Lift Fox Shock, Eyelet Ends, 2.0 Performance Series, IFP, 12.1" Travel Fox 2.0 Factory Race Series Smooth Body w Reservoir Shocks 981 20 012. INCLUDES ALUMINUM RESERVOIR CLAMP; PERFORMANCE TUNED FOR VEHICLE SPECIFIC APPLICATION; ALUMINUM BODY DISSIPATES HEAT FASTER THAN STEEL; EXTERNAL RESERVOIR SYSTEM DISSIPATES HEAT FAST; BLACK ANODIZED CNC MACHINED ALUMINUM COMPONENTS