gordon take the pin and super glue it in the hole when dry cut the top off and sand it flat drill a 2-56 drill and a 2-56 screw the new truck and wheels to the car right height for coupler too
One method I have used is to remove the pin and drill out the hole to 1/8" dia. Install evergreen scale models 1/8" styrene tubing in the hole and trim flush. After the glue dries (usually over night) install NEW trucks with #2 self taping screws. The hole in the tubing will take a #2 screw. This works well with any plastic car that the screw hole is stripped. If the new trucks have a hole larger than #2 you can trim the tubing a little long and form a bushing. Atheran and Life-Like trucks usually have a large hole. Altas has a #2 hole.