2004 F150 HD 8200 17" 7 Lug rims
 

What is the biggest size tire I can go on the stock rim 17 X 7.5. The smallest 17" BFG AT load range D is 285/70R17. Will these fit without a lift? My stock tires have 30.6 overall diameter. The BFG AT have 32.8 overall diameter.

a 285 is fine for a 7.5" wide wheel.

that's probably what i'd do.

Tires and Lift
 

You might want to also consider the 2" revteck leveling kit for the front. The 285's will fit but a little tight, and the two inch lift will help get the nose up so you do not drag. I tore the transfer skid off my 8200 the first week.

Now I have 17"x8" wheels and am waiting for the Nitto 295's to arrive. I should have them by the end of April. Right now no one has the bfg's or any other AT tire in this region.

The new rims were along time coming! But they look good and were worth the wait. Two of us up here got them for our 8200's

Hope that this helps