A 285/75/18 is about 35.1" tall, slightly taller than most 35s. You may have some clearance issues with the bumper if you're suspension is all stock. What is the stock tire size on 18s?
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2003 F250 FX4 Sport, 6.0L Diesel, TorqShift Auto
- 4" Donahoe Racing springs, Bilstein shocks, 4.30 Yukon gears, Detroit TrueTrac
- 18x10 Diamo 17 Karats, Cooper STT 35x12.50, Off Road Tech winch bumper
- SCT Xcal2 with Spartan tunes, ISSPRO EV2 Gauges (Pyro, Fuel PSI, Boost)
I just installed 295/70-18s on my 2006. The stock 275/70-18s are 33.2 inches in diameter and 10.9 inches wide. The 295/70-18s are 34.4 inches in diameter and 11.7 inches wide. I've loaded photos in my gallery (at the bottom) if you care to look and you can get an idea of the clearances. My truck has a completely stock suspension with no lift or leveling kit. Your 350 sits a little taller than my 250 so you may have a little more clearance. However, I wouldn't go any taller on my 250 than what I've got on it now.
__________________ Frank
2006 F250 Lariat FX4, CC, SB, 6.0 PSD, Torqshift, 3.73 LS, Backseat DVD system, Peragon Folding Bed Cover, Extreme Bedliner, Westin Bully Bar, Dieselsite Coolant Filter, Fumoto Valve, Accufab Intake Elbow, Bilstein HD Shocks, Smitty-Bilt Grille Inserts, MBRP Turbo Back Cool Duals (Kitty ran away), ICON Dual Steering Stabilizer Kit w/Bilstein 5100 Shocks, Nitto Terra Grappler AT 295/70-R18
On my 350 srw. king ranch .I had 315/75 R 16, stock rims. If I remeber right they are 31.5 inches tall. They would rub inner plastic fender when turning hard especially going bumps., and I had to pull the fender back towards the frame with snap ties.I also have a leveling kit on mine.
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DOUG
2004 F-350 Super Duty Crew King Ranch . 6.0 psd...coolant, filter, slotted and drilled rotors,kitty ran away, air bags,leveling kit, progigy,piaa lights,
2003 EXP; All stock Wifes ride!!!
2006 2500HD gmc.All stock work trk.
On my 350 srw. king ranch .I had 315/75 R 16, stock rims. If I remeber right they are 31.5 inches tall. They would rub inner plastic fender when turning hard especially going bumps., and I had to pull the fender back towards the frame with snap ties.I also have a leveling kit on mine.
315/75/16 is a 35x12.50, quite a bit wider than what we're talking about here and certainly not a 31.5" tire (that would be shorter than stock). Mine had that size on it when I got it and stock height it wouldn't rub on the street, but it was within 1/8". Wheel offset makes a huge difference with wider tires also. With stock wheels a 285/75/18 will probably be alright, but if you don't plan on changing gears I'd go a little smaller.
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2003 F250 FX4 Sport, 6.0L Diesel, TorqShift Auto
- 4" Donahoe Racing springs, Bilstein shocks, 4.30 Yukon gears, Detroit TrueTrac
- 18x10 Diamo 17 Karats, Cooper STT 35x12.50, Off Road Tech winch bumper
- SCT Xcal2 with Spartan tunes, ISSPRO EV2 Gauges (Pyro, Fuel PSI, Boost)
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