Guess I'll toss my $.02 into this. We had a '15 F350 SRW, cc,4x4,sb,6.7 w/a GVW of 11,500. It weighed 8500 set up ready to tow. Rear axle capacity was 7,000, tire capacity was 7280. Bought new RV in spring of '17. Dry weight was 14,000, max was/is 16,000, pin wt of 2860. So empty wt wise, I had 6480 on rear axle out of 7000 and total empty combo wt of 22,500 out of 23,500. Now, fully loaded, things shot up. Rear axle went to 7360, Pin 3740, truck GVW 12350, gross combo 24970.
So what does this all mean? I was over on truck's rear axle, GVW, combo GVW as well as the tires. Also had Torque lift upper/lower stableloads. Truck did very well towing it and we liked the truck very much. HOWEVER, it was just plain over everything and when it came time to plan for last years summer trip (FL in July/Aug), I had this nagging gut feeling about being over on things....especially the tires. I really didn't care about the truck being over, but the tires really bothered me. So we ended up getting a '17 F350 DRW,cc,4x4 and all "fears" went away. Yes I miss the SRW a ton, but safety /w the wife and crew w/ me won over my love for the SRW.
FWIW, IMO, I personally think that a RV w/ gross GVW over 15k is DRW territory. Yet we saw many a SRW trucks towing as heavy of RV as ours and God bless them.
