You have heard the song " Count your blessing, name them one by One" well we have sang that and a new one!!
"Count your wheels, name them one by one"
It started, pickup truck jerked, once, twice, three times, moving left and right and then, smooth again. Looked in rear side mirror and saw one tire coming to a stop in slow lane. On the brakes now and off to side of road. ( over a dead deer in peices ) I told Dave we lost one of his trailer tires. Dave and I jumped out to see which tire had came off trailer, he said everything fine on his side. I yelled back that all tires good on my side. I then said we lost trailer spare tire, he said no it was in trailer. ( I looked to make sure, it was in trailer). Mean while cars slowing and moving into fast lane to avoid the tire back about 1/2 mile from us. He said you must have ran over a tire in the road. I told him I did not run over that tire I would have seen it in road, now cars slowing to avoid the tire. Then we discussed the missing tire, if all were on trailer, spare in trailer, all wheels on truck, where did it come from, THEN I looked under my truck, SPARE is gone!! I took off running south towards tire as I thought if someone hits that tire it will come sailing towards me at rocket speed, ( now I know I can run at least 1/2 mile ) Cars are now stopping in slow lane and trying to merge into fast lane as I get close to tire, slow lane now stopped with people in fast lane flying by not knowing why people are stopped. Finally got to tire and picked up tire and small steel tire carrier support. Out of harms way now and walking my tire along highway back to truck. Got to truck and loaded, got down under truck and the cable that supported the tire was broke, this let tire drop to road. It could have been very bad if tire had jacked up my truck and we lost control(going 65MPH), or wedged under trailer, tire crossed road and hit someone, the list goes on and on. I now like the old design of a hanger with support under tire and a 3/4" bolt and nut. I used to complain about how hard it was to lower but at least they lasted for years and years. My F250 is a 2000 with 220,000 miles, looks like the tire hides the salt when you spray off or even driving in rain it does not wash this area above tire.

Have not weighed tire and rim, but at least 50 or 60lbs

Running and now walking