Pull the plugs and spray each cylinder with wd-40, kroil, pbBlaster, etc. and then dump a mixture of 1/2 automatic tranny fluid and 1/2 deisel fuel down the carb. A quart or so would do it. Just let it sit until you get it home. Air in the tires will help the transport. Check with the transport to see if they charge more for non-running truck first. Hopefully the brakes haven't swollen to the point that the wheels won't turn. That wouldn't go over very good with the transport.