Strong rear axle assembly for XRAY XII, X12 or XRAY X10 features tough shaft that is specially machined for perfect balance and smoothness with zero run-out for vibration-free operation. Made from HUDY Spring Steel
Gear differential precision internal gears made from tough composite material. Includes 2 bevel gears and 4 satellite gears.Also fit NT1 gear diff. 80% lighter than the original steel gears.