Gear ratio :
reverse = 1:1.2,
normal ( not reverse )= 1:1
It has 1 reverse gear ( 1:1.2) and 1 normal gear ( 1:1 ).It is a 4wd gearbox. It is designed for trial truck cars, so you can drive backwards with a stronger gear ratio.
It has been tested out for real, not only built on LDD.