may take some wiggling if the tracks are rusted. You can look up there and see some of the track. The track is incorporated into the frame outrigger and can be a trouble spot. If it's too far gone the outriggers needs to be replaced and now you're getting into a big job. Not impossible, of course, but significant. I'm just trying to let you know how the steps are incorporated into the construction in case you haven't looked up in there. Hopefully not to jinx you. Beware, these older trailers often come with some baggage. To some that's part of the allure, to others part of the nightmare. Once you get them to slide in their track lube them up to keep them sliding.
Good luck with it.
Roger in NJ
" Democracy is the worst form of government. Except for all the rest"
Winston Churchill 1948
TAC - NJ 18