just recently bought a 2000 f150 lariat ext cab 4x4 offroad...stock 17's with 265x70x17......what would i have to do to fit 33x12.50 on my truck...dont want a body lift..just dont like the way it looks...i dont think i can run them on my stock 17x7.5's...if i can then cool...if not i would like to go with a 18x10 so when i save up and get my 6" lift...i wont have to buy new rims

 

They'll fit on stock rims, and only stock rims w/o a lift. Also, 285/70R17 is about a 33"x11.5" tire and offers even more tire choices.

 

Yes, you can fit 33x12.50's easily using the OEM wheels. You can also fit them on a 10 inch wide aftermarket wheels (with 4.5 inches of backspacing) by trimming a little plastic off the front bumper's lower valance.