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.