> I need a main driveshaft (with good
> for my '76 280....
Take your driveshaft to a shop that specializes in shortening, repairing, balancing drive shafts. They can replace those worn u joints for you. That's where I took mine. Don't believe that they are not replaceable. I live in Sacramento, California, and there is shop here that can do it. I found them in the Yellow Pages of the phone book!