Hpi-87634 reduction gear box set (wheely king)

Wheely king / 1:7.4 ratio reduction gear boxtransform the wheely king truck into a rock crawling beast with this reduction gear box set. This genuine hpi factory approved gear box bolts right into any wheely king for a perfect fit. It contains a tough metal case, ball bearings and all-metal gears for extra durability. The gear ratio is transformed from 23:1 on the stock truck to a whopping 174:1 after the installation. This reduction gear box set is perfect for rock crawling because it delivers stump pulling torque and the power to climb any slope.recommended for use with #87633 wheely king crawler conversion set, but it can also be used individually or as the basis for a custom project.