F250 Rear Axle Weight Rating with 20" wheels

Gdetrailer wrote:

spud1957 wrote:

Buck50HD wrote:
Thanks! Didn't think to look up this document. Now, I see why I thought you had to get 20's for a 7000lb RAWR. It's because the standard 18" A/S tires limit the rating to 6730lb and those are the only stickers I've seen. With the 18" A/T's, it shows 7000lb rating. So, with the camper package on an F250 and 18" A/T's, it's effectively 7k hardware, like the 350 but with a 6100lb sticker.

EDIT: another disclaimer... the guide shows the axle rating by itself is 6200 on F250 and 7280 on F350 so maybe there is a structural difference

No difference in the rearend/axles between the 250/350. Both use the Sterling 10.5" and the same shafts. That can be confirmed looking at the specs on the Sterling or Ford Parts website if you were to order one. If you were to order an F250 with the Camper package and 18" wheels, you technically have an F350 without the "official" F350 payload certifications.

On Edit: Looks like Ricatic got to this fact before I finished my post.

Perhaps you could explain the rear axle ratings difference to me?GAWR is determined by the rated capacity of the minimum component of the axle system (axle, springs, wheels, tires) of a specific vehicle. Which on the F250 is the 17" tire. You order an F350 with 17" tires, the axle is rated at 6290.

F250 rear axle rating no matter what payload package IS 6200 lbs, doesn't matter if you get camper package (camper package does add in "overloads")or any other it is STILL 6200 lbs ACROSS ALL F250s. Agree that Ford rated the axle/tire combo at 6200, not Sterling, because the 17" tire will come with the camper package..


Bigger tires on a F250 does not make it a "F350". For 2011+, with the camper package and 18" tires, technically it is an F350. Officially? No.

If you find yourself needing the extra capacity of 18" tires then you REALLY should be buying the F350... Agree