I think I need to replace the front truck of the locomotive. The locomotive was recently repaired, and when I got it back and I took it out of its packaging, the front wheel fell off. There's also a small spring like mechanism that connects those wheels to the body of the rest of the truck - and that is broken. I will include pictures to show. It also appears as though the screw that holds the front wheels to the truck is stripped. So, I'm thinking a replacement of the entire truck is probably the easiest (although more expensive) option - unless you guys can guide me on how to repair the screw and spring mechanism.
I need to see an exploded parts diagram so I can order the proper part - assuming Lionel provides it.