Super-tiny, lightweight CVD universal drive shaft (138mm) for XT8 made from world-renown HUDY Spring Steel happens to be strategically machined for toughness and light-weight without compromising power. All drive shafts are made of world-renowned HUDY Spring Steel, leading to a number of the worlds thinnest yet numerous durable drive shafts present down road cars. All drive shafts & outdrives are hardened with a proprietary solidifying procedure presenting unsurpassed lifespan & dependability.