Great!

Nothing like the first run! Sort of the good with the bad usually as you find out where you really are once you can get it to operate enough to find out.

If you can find an immovable object or a really heavy load in an area where you can get good traction and some way to hook tractor to it, put the tractor in LOW gear and pull the good steering clutch back and let it just pull on the stuck side and see if you can break it loose.

It helps if the lever has some "pull" to it. If it won't move the clutch after the free travel is out, you're probably out of luck. May also want to adjust the free travel all out so you get more pull and less slack, once you get it loose, you can put the free travel back in so it has some room to wear the rust off (decreasing free travel) and still not be slipping when you don't want it to.

Some say to ride the brake on the stuck side to heat the drum up, Probably a good idea, after all if you get it loose, you have saved a whole lot of work. Have you soaked it yet? If theres solvent in the clutch housing, I don't think I would ride the brake much, it couldn't get things very hot with a liquid coolant in there bathing the drum.

Make sure the main clutch has a good snap to it as you pull it back, no use burning that one up attempting to avoid tearing the steering clutch down.

Probably the pivot shaft of the brake pedal is dry. Soak it with your favorite penetrant after removing the floor board so you can scrape the crud and gunk out of there. Rock the pedal back and forth until your arm is sore while spraying with your favorite penetrant. Other than the two points inside where the brake bands attach there is no other place for it to be sticky.

Thanks for the info on the tires. I got the nieghbor to replace all five tires on the trailer with my financail assistance. Niether of us have blown any more out YET! I run dry rotted old Goodyears tires on the Dump trailer as it doesn't usually go far (20 miles). I found a spare rim once and it was just a hair larger than the hubs on both trailers? At least I got a good tire off from it.

Also you do know the old timers say on a D2 to keep the steering levers tied back after you get them working while in storage to prevent them from rusting stuck?