The only other thing that we can use is a clevis joint, but those will need new holes drilled into the car. When we installed the bar on Jays car it did not move at all, so I am thinking that over the 50mile drive home the jam nuts might have loosened up just a touch. I asked him to torque everything down again. If the bar moved, I can have some conical washers made so that the heim joint gets jamed and wont move, or you can just use a big washer that will solve the problem of it moving.
Mark
Mark