YellowLightning wrote:
Essentially adding the 18" tires and wheels should allow the truck to handle a Rear GAWR of 7000lbs and give the truck an 11000 GVWR.
Thoughts on my thoughts? haha
Fords SD rear axle is rated for 9,750 lbs so your rear axle weight rating comes down to the ratings of the installed tires at 80PSI times two. (the weakest link)
My stock OEM tires on my 2017 F250 were rated at 3450LBS each giving me a rear axle weight rating of 6900.
Needless to say, the stock tires and rims were replaced with less than 500 miles on them for higher rated parts. :)
- Mark0.