And before you leave for home, check the pressure. If the trailer has been sitting all winter, it wouldn't surprise me that you may be as much as 10 lb under inflated. I've seen folks lose tires in 10 ft of travel when pulling into or out of a campsite due to under inflation. As a matter of fact I saw one guy attempt a back in and rolled one of his tandem tires off a wheel. He stopped put on the spare and proceeded to roll that tire off the wheel. He never thought about checking the inflation of the spare.
'04 Classic 30' S.O.,'03 GMC Savana 2500,'14 Honda CTX 700