I think you need to check out the specs for a pickup not a cab and chassis. The brakes are the same diameter for the 250, 350 & 450, you have a higher rear axel gross weight rating with a 350. The 19.5 tires do not last much longer than regular LT tires, not to mention the increased cost of those 19.5s plus a regular tire shop won't work on them. I had an 08 F450 and the tires were wearing out at around 50K (Continentals) then went to Toyo not much difference. Replaced that 08 with a 2015 F350 man what a difference the ride is better, tows better, handles better and I'm towing 20K so unless you need that extra towing capacity forget the 450. You can get the wide track front axel with the tow boss package but I would no recommend it, they follow the truck grooves in the road because they don't quite fit the groove width. Get the 350 DRW with 3:73 gears and you will be a much happier camper. A past 450 owners opinion.
2016 Superduty Specs
