CNC-machined 81mm CVD drive shaft with 2.5mm pin made from world-renowned HUDY Spring Steel. The drive shafts are associated with worlds thinnest yet many durable drive shafts found in electric off-road cars. Hardened with a proprietary solidifying process, the drive shafts provide unbeatable lifespan and reliability. The CVD installation additionally features a composite safety collar to help keep the mounting pin securely in position.