As long as we are not totally on topic, could someone give me an explanation of what Torque Tube systems are? Have heard the term numerous times but have never understood what or how they worked. Thanks Geoff Johnson --On Sunday, October 31, 2004 5:27 PM -0500 JVHRoberts@aol.com wrote: > Simple, the engineers learned better. That's why torque tubes are no > longer in use.