Crespro wrote:
Hello Folks,
I appreciate the thoughts of those who suggest we should all follow the proper specs and the statement that the Ford is a Reese hitch. Let me share our specs and then I will return to the 5th wheel hitch question.
We had a 40DP from 2005 until 2017, so some of our user specs come from that experience. We traveled with the 40 DP in all 48 lower states, but now plan to stay mostly on the California coast in our favorite RV parks. So a towable makes sense.
The Solitude we looked at Saturday passes the Kitchen, Living Room, Bath and One-Half, Bedroom, and Décor Specs.
The tow vehicle must pass both the Ford and the user specs. The current Super Duty Towing Guide on the Ford website shows 19,000# 5th wheel towing capacity for the 7.3 with 4.30 axle. The F250 truck manual shows 26,000# for the GCWR. The UVW spec is 6,500# for the 7.3, eight foot bed and our options. The gross is 10,000#, producing a payload of 3,500#. The RAWR is 6,340# and initial pin weight is 2,800#. With growth to 3,100# pin weight, DW and I, we should be about 15.5K on the 19K, 22K on the 26K and about 6K on the 6.34K axle ratings. We can store any extras in the RV.
The 40DP had four air bags for suspension and that has created an expectation. We hope the 4x2 front axle IFS and two airbags on the rear axle will produce a compliant ride spec. A 4WD or F350 will fail the desired ride spec. :-(
Many years ago I was in Detroit and had friends who were Ford engineers. The Ford engineers create the 19K and 26K specification with unpublished but real safety margins. My numbers show added safety margins over theirs (about 3K or 4K under the towing and GCVR numbers). I understand safety and these two margins are sufficient.
Thanks for everyone who responded. The Ford website does not offer any details other than the 18K rating on the Reese hitch. Knowing Ford, I suspect this is derated from a higher level.
Thanks for replying,
Crespro
Nice choice on the Solitude 373FB.
We have looked at them also, brochure dry is 13,950# and dry pin is 2,800# that is just over 20% pin. If loaded to 15,500# 20% is 3,100# so you are adding 1,500# to a 41’ 5er. Asked on the floor plan most of that added weight will be forward of the axles, so
20% will likely become 22% or greater. So 22% of 15,500# is 3,410# good by payload, and getting close to rear axle with hitch. Yes get the B&W 18K puck hitch.
Ride?? The only Pickup that might ride close to the DP with bags is a Ram 3500 4x2 with rear air suspension.
Let us know what the yellow payload sticker states when you new truck arrives. Based on the desired ride I assume the truck is a lariat or above, the 7.3 will save some weight, and seems to be capable for 16k. Likely will make some noise climbing hills.