Hey dave10a, is your truck suited to tow that big Landmark? By the looks of your avatar and the research I did on weights, it would seem that your SRW truck would be overloaded.
Reason I ask is that I am going for the same truck as you: F350 SRW short bed and I want to gauge what I can tow.
Thanks!
Morning datedd. I did some exhaustive research on the 2012/2013 Ford Super Duty trucks prior to my latest purchase (2012 F350 CC DRW). Short story I found is that getting the F350 SRW over the F250 SRW doesn't really buy you much. In fact it you add the camper package to the F250 SRW you have the same components as the F350 SRW. Here are the rated 5th wheel maximums (assuming 4x4, Crew Cab SRW, and the 6.7l Diesel):
F250 Max Loaded Trailer: 15,200
F350 Max Loaded Trailer: 15,700
Where I ran into trouble with my previous rig (15,500 Keystone Alpine) was the pin weight. Maximum payload (same assumptions as above):
F250 Max Payload: 3290
F350 Max Payload: 3790
These payloads are apparently dependent on the GVWR listed on the door sticker. Pretty sure they are not changing components as they change the ratings (at least according to the folks on the Ford forum), but if you are looking for a truck to legally carry what your payload might be you will want to get the one with the highest GVWR on the sticker you can get. Be advised though that higher GVWR on the sticker in some states means more expensive license plates (i.e. Illinois).
So with the F350 by the time you add up all of your fuel, passengers, and gear in the truck that might not leave much for your pin weight, perhaps as follows:
4 avg adults: 720
full load fuel: 186
avg hitch: 200
avg gear: 200
3790 minus all this come to 2484 for your pin weight, and that is not leaving any safety margin. In my previous truck I was on the edge or over most of the time with the Alpine - for payload and rear axle. Pulled just fine (had to use Ride Rite air bags to level it though) but legally and by truck rating I was not in compliance.
Of course since I upgraded to the Cyclone 4100 a SRW was out of the question, as now I'm at 18,000 loaded trailer and certainly over 3000 pin weight. Moving to the F350 CC DRW configuration (two extra wheels, different axle, suspension components, etc.) provides a huge bump:
Max loaded trailer: 21,500
Max payload: 5,990
Sorry for the long post - but since I did so much research thought I would share. Again this is all on the 2012 Ford Super Duty series, but the 2013s are close to the same. Only downfall to the bigger truck for me was licensing cost increase (both plates and inspection) and personal license - with this setup I now need a non-CDL Class A. Shoot me a PM if you want to hear more.