They are 15x8 American racing tail gunner 2 rims which I don't think they make anymore but I had the same wheels on my 88 b2 and when I put new bfg at 30x9.5s on them they rubbed so I put a 2 in lift on it. I don't want to lift this 90 yet and don't want to waste money on 31s that won't fit, albeit they are used and cheap tires.
If I was buying new tires I will put on either 30x9.5s again or 255 70 15 coopers,
Thanks for any input y'all