Pirelli Scorpion 285/55/18 will fit on stock wheels with no trimming. I now have Kumho Ecsta STX 265/60/18 on the stock rims. No trimming and they ride better than the Pirellis. I shopped around for other tires in this size, and there just aren't very many acceptible options. I also have a set of the Blizzaks in this size. But, If you think these wheels have limited options, try putting shoes on my '82 Mustang -- 220/55/R390 -- If you don't like Michelin TRX tires, you're out of luck.