^same here. I have been running 265's on my truck for four years now. Absolutely no problems wheeling or street driving. TBar crank could get you passed the 285's but not at stock level from others people's input on this site in previous threads. It just matters what you use your truck for too. If you just use 4X4 for hunting like me, the 285's should fit with a TBar crank. But if you are planning to wheel in this truck like actual trails and such, I would def suggest putting a 1" BL and a TBar crank or even just going with a 3" BL.
-2011 F-150 Lariat: 5.0 "Coyote" V8, 6-spd Auto (6R80E), 3.73 ELocker. White Platinum Metallic Tri-coat.
-1992 Ford Ranger: 4.0L OHV, 5spd (M5OD-R1), 3.27 Open.