carringb wrote:
I'll post this link again... These are the Full 2019 SuperDuty Specifications. If you take the time to read them, you'll see the F450 has an entirely different front axle, heavier rear axle internals, and bigger braking system all around. When Ford switched to the aluminum body, the frame did become common with the F450 once again, but it's all around stiffer than the previous generation. Plus the wide-track front axle and 19.5" wheels.
Also, one more bonus with the F450... You can get a eLocker with 4.30 gears, but not with 4.10 gears as that ratio only gets LS as an opion. So if you must have an eLocker, on the F350 you are limited to 3.55 gears which is good for 36k combined vs 41k+ for the F450/4.30 gears.
These are relatively small differences, but enough to matter for some folks, and it's nice to have the option. It may not be for you. That's fine. Don't buy one then.
It comes down to I think if they are going to build a truck more capable than the f350 dually then give it the springs and ratings so it can be used by those who need a truck more capable than an f350 dually. If there co.es a day I'm looking for a dually I might look at an f450 but more than likely I'll never want a lower speed axle than the 3.55.