WTB - 31X12.50 X15 TIRES

as the ad says, looking for a set of four 33 or 35x12.50x15 used tires.
I know I'm looking for some dinosaurs.....but need to find some. Thanks

I have some 31’s in my shop

Thanks....screwed up ad. Need 33 or 35 in. May have to take 31. how much ?