How about drilling a hole in the top of the torque tube so you can get behind the second bushing with a hammer and punch to move it forward? Once it's out, thread the hole for a tapered pipe plug, plug the hole, and grind the surface flush again. That would be less work than pulling the whole third member, disassembling the gears, and using a long piece of pipe to knock the bushing out from the back end!
Jerry
