I don't know if it is the largest tire on a 450 here on the board, but I went with 37x13.50x22 Toyos on mine. This combination puts a whole lot of rubber under the rear of the truck. :+)
Hey Hot Duck, did you put adapters (for 10x225 I think) on for those? or did they make you some wheels to fit the 10 bolt Ford F450 pattern?
I've done adapters before and while I liked the stability of the setup, I didn't like the added rotational weight and unsprung weight. I'm watching for direct bolt on.
This was my trade in for the F450
F450 Lariat 4X4, red, 4.88's, everything but the moonroof, S & B Intake, Banks exhaust, Amsoil.
Hotduck.....I take it you have a lift on your truck??
It is lifted 8". We used a Pro Comp system, but we had to get all of the steering components from Kelderman because the Pro Comp steering parts would not fit the 450.
The only downfall is that I will have problems with the height of the bed sides if I ever go back to a gooseneck trailer. I was towing a 53' gooseneck with it, but I replaced that with a 46' tag trailer just before I lifted the truck. So far I have absolutely no regrets. The truck still tows as well as it did stock, but now it rides better and is substantially better when traveling anywhere off the pavement.
I put 245-70-19.5 Bridgestone tires on my stock wheels when the truck had 3000 miles on it, I have 26000 on it now with no problems. I have done one rotation and run the air pressure around 85 in the back and 75 in the front. These tires are way better in the rain / snow and wear like steel.
2015 F-450 Lariat Black, Black Interior Loaded except sunroof. B&W Companion hitch in factory prep. 100 gallon HiLite tool box / fuel tank combo.
2013 F-350 4X4 Single Rear Lariat Tuxedo Black, Black Interior. Loaded except for sunroof. Toyo 35-12.5-20 M/T
2011 F-350 4X4 DRW Lariat Black, Black Interior, Loaded except sunroof and nav.
2008 F-450 4X4 XLT Dark Blue Pearl, Stone Interior
Job 1, 4.30 Rear. Stock except for a set of 245-70-19.5 Bridgestones and a Roush Cold Air Intake.