http://chevette-forum.freeforums.net/thread/27/torque-tube
I wonder if we can find the dimensions of the carrier/donut bushings somewhere. Druggles was theorizing that a 1.1L Opel GT bushing might be the same as a Chevette. This stuff is available in the Opel world at about $25-40. I may call this place tonight and talk to them (they list a couple different ones):
http://www.opelgtsource.com/store/gt/axle/axle.html