- Rugged extruded aluminum housing for durability and heat dissapation

25 tooth (Futaba

Aluminum Shock Bodies for RSD 100mm Shock

Drivetrain efficiency has been improved by lowering the transfer case and reducing the driveline angle

HPI Racing - Heavy Duty Final Gear Set, P1x36 Tooth, P1x14 Tooth, for the Nitro 3 18SS HPI105502 - Rugged extruded aluminum housingHeavy Duty Final Gear Set for Nitro RS4 3 touring cars. These are standard replacement parts for the high performance Nitro RS4 3 18SS, 18SS+ and Nitro RS4 3 Evo + cars, and can be installed on the standard Nitro RS4 3 for increased drivetrain strength, extended maintenance intervals, and a taller gear ratio for higher top speed. These heavy duty gears are heat treated, making them a great upgrade for Nitro RS4 3 owners who are using powerful engines.