Exotek 2123 Associated DR10M Alloy 3 Gear Gearbox with Motor Plate 7075Exotek 2123 Associated DR10M Alloy 3 Gear Gearbox with Motor Plate 7075 The 'bullet proof' piece for your high powered DR10M build. Heavy duty machined alloy gearbox that keeps your gears in perfect alignment, even under the heaviest motor rpm loads. The '3 Gear' option rotates the motor around and uses 1 less idler gear like other traditional drag cars for use on higher grip surfaces. 1 less idler gear makes the transmission more efficient, quieter