I have 4 36x1250x16.5 Goodyear Hummer tires for sale. They dont have much tread left on them and I wouldnt reccomend using them for street tires- but they would make great spares. $15 a piece or $50 for the set... other offers are welcome.

I also have one BFGoodrich 35x1250R16.5 Mud Terrain that I'll let go for $15... it too also has minimal tread left but again would make a great spare.