Drive axle for XRAY adjustable drive shafts. Drive shaft length modification makes use of 4 various connecting gap positions on drive axle end allowing changes to general driveshaft size. Backside wheel axle for big ball-bearings made from world-renowned HUDY Spring Steel. Strategically machined for toughness and light weight without compromising energy. The wheel axle is likewise hand ground for optimum precision to make sure a fantastic, accurate easily fit into suspension system ball-bearings, guaranteeing perfect wobble-free fit and rotation. Heat treated for maximum strength, durability, minimal use, and extra-long lifespan.