CNC-machined CVD straight back drive shaft (77mm) with 2.5mm pin. Crafted from world-renowned HUDY Spring metal the drive shafts feature 2.5mm drive pins for optimum drivetrain efficiency. The drive shafts are connected to thinnest yet most durable drive shafts within electric down road automobiles. Addressed with a proprietary solidifying procedure, the drive shafts offer unbeatable lifespan and reliability.