Locate
the small light purple spur gear - G1. There are 2; one for each
motor.
Place
the G1 gear on end of each motor shaft as shown in the photo. Slide
it far enough on that it stays in place.
Hold
the motor in your hand and place the G1 gear on a flat surface as shown in
the picture. Press down on the motor until the motor shaft slide all the
way through the G1 gear. The motor shaft should be flush with the gear.
Repeat this process for the second motor.
Place
the motor into the gearbox housing as shown in the picture. The
motor should slide into the slot easily and should be held in place by the
plastic tab that hooks over the end of the motor.
The motor leads should be towards the outside
to make it easier to solder wires to them later.
Place
the second motor into the gearbox housing. Make sure the motor leads are
towards the outside when placing the motor.
Locate
the plastic motor spacer. This piece slides in between the two motors to
help secure them in place.
You
now have a completely assembled Tamiya double gearbox!