All I was saying is, there are several modern iterations of the torque tube that do NOT use solid shafts. And for good reason, that's all... In a message dated 10/31/2004 5:33:20 PM Eastern Standard Time, YENBAT writes: You went way out on a tangent from where I was coming from... Torque tubes used SOLID drive shafts. That was my sole point Tim Abney