just a word of advice on superlifts lift chart. it also says that you need at least a 3 inch lift to fit 33x12.5 tires on a 80-96 f-150. this is not true. u can fit em with the stack suspension no problem. so i would asume that u could fit a tire 2 inches largeer in diameter on all there lifts. untill i bout my new 35s, i was running 38 inch tsl,s on my truck with 4 inches of lift with no problems. just my 2 cents.
'75 F-100 4x4, 4" lift
35x15.5x15 super swamper TSL/SX
mini-spooled 9" rear end
390 w/ cam,headers,
and 4 barrell edelbrock

TRIED TRUE and FORD BLUE