[gordon]

Yup, 18" tyres are nothing but grief (as regards getting them anyway)

Of course the common ones were on the DUKW (11:00 x 18) and I had one original US tyre which was 10 ply, and about a dozen British Dunlop ones that were 12 ply monsters. I just replaced the lot using Gama Goat tyres which were only 7 ply but modern construction and fine for the DUKW (as long as you didn't put a huge load in)

Two of my 8.25 x 18 tyres on Puff have been kept aired-up and are fine, but the other two have been left soft now and then so have cracked.

I know where I can find a couple in the US, but never seen the 8.25 x 18 tyre on anything other than US equipment where is seems quite common on trailers in particular. My 1.5 ton Ford-MH SnoGo weighs closer to 6.5 tons so not something to be trifled with - my garage jack will only lift one wheel at a time - not even one end of it.

Gordon