I know this doesnt have anything to do with 300 sixes, but I was wondering if someone could tell me what are the biggest size tires I could put on my truck with stock rims. Its a 88 F150 2wd. What size rims would I need for 33"s ? Thanks.

 

If they are 7.5" rims, I wouldn't go any bigger than a 33-10.5-15. Watch the size. Typically 33's are 33-12.5-15. I run 31-10.5-15 now but my next set will be a 33-10.5-15.

If you do go with the 33-12.5-15, watch the air pressure. You may find you have to run about 25psi or less to have them wear properly. usually the suggest 33's are run on 10" wide rims

 

31-10.50 it the largest size you can fit without rubbing. 32's will fit with some rubbing. 33's will rub badly. you will lose some load capacity and suspension travel with anything larger than a 31.

 

32X11.50 BFGs rub a little at full turn on 15X7 wheels.