Just picked up a fixer upper SD45 (proto 2000) at a train show, the rear truck appears to have fallen out of it’s socket. It is still hanging on by the wire to the gears.
I’ve never encountered this before and don’t know how to solve it. Anyone got suggestions?
If what Mike said is what happened you might also need the worm gear and a square bronze bushing as well as the coupling rod between the motor and worm gear.