Hey all, just bought a 94 F150. 225k miles on the 4.9 and still runs strong!! Its an extended cab, long bed, four wheel drive. Need to know what size of tire I can go up to on a 15 inch rim without a suspension lift. Stock is somewhere near 235/75/15.

 

31 x 10.50

 

right on. thanks.

 

i can fit 33's under mine with a little rub. but 32's don't rub

 

With these 32's, what is the wheel size you are using? stock 7 inch, or a bigger 8? Also, what is your backspacing, do you know?

 

You may want to try 33x9.50. The narrower width may gain you something and they are a much better tire for your area (snow and mud) and less likely to hydroplane than a 31x10.50 (which, as they said, will fit w/o problems)