I've got a steel 18" 8x6.5 set from my Dodge 2500 I can do without. I was using them up until the winter storm that passed through earlier this year. I can get pics tomorrow if your interested, tread isn't much but no cords showing.
2016 date codes Firestone Transforces, no patches while I ran them. Still holding air. I've got another 8x6.5 with a 35" tire on it I can throw in. It's got good tread but it's an old spare taken off a cab and chassis service body.