Shimming the differential correctly is an important step and this is the building the perfect gearbox

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HS-82MG Standard Metal Gear Micro Servo

Fits RC10TC6

thus creating another flex zone that allows the bumper to compress under extreme impacts yet return back to its original shape once the impact energy has dissipated

Power Hobby - Cooling Fan, for Traxxas Velineon VXL-3 ESC, Orange HPI110662 Shimming the differential correctly isHeat is the enemy, especially when it comes to electronics. This Powerhobby cooling fan for the Traxxas Velineon VXL 3 ESC reduces ESC temperatures during extended operation, for maximum power flow. Simple installation, plugs right in to the VXL 3S ESC.