16" or 18" tires and how do I match rims
I currently have LT265/70R17 BF Goodrich Rugged Trail T/A tires with a max load of 3195lbs on my 2012 F250. I know it has the same axle as the F350 with 18" tires, so I can increase the payload capac...
Forum Discussion
donn0128 wrote:
That alone cannot alter your factory GVWR numbers. Does the axle assembly in deed have the same part number? How about the spring pack? Or the frame? Or heck even the front axle assembly? Think for a minute, why would Ford, or any manufacturer go through the huge expense of certification just to use different tires and wheels? Makes absolutely no sense.
Nope, with the exception of the add'l overload spring and block on the F350 (optional on the F250 but doesn't change any numbers) There is no difference in model year 2011+.
When you buy an F350 with 17" wheels, you get different axle ratings obviously.
Agree that you can't change the "legal" (I use that term loosely) GVWR but you can upgrade to feel safer with the add'l weight capacity.
It is a little bizarre but it is all a numbers game.
Here is Ford's small print:
Gross Axle Weight Rating is determined by the rated capacity of the minimum component of the axle system (axle, computer-selected springs,
wheels, tires) of a specific vehicle. Front and rear GAWRs will, in all cases, sum to a number equal to or greater than the GVWR for the particular
vehicle. Maximum loaded vehicle (including passengers, equipment and payload) cannot exceed the GVW rating or GAWR (front or rear).
