We pull a 36FL with a F350 CC SRW, with the max GVWR of 11,500 lbs.
To ensure we are within limits I went to the scales, initially with the truck only and weighed each axle. At this time the truck was loaded for travel with DW, dogs and full fuel.
We then went to pick up the coach, which was about 1/2 mile away, so minimal fuel used. I then weighed each truck axle again and the trailer axles. Tried to weigh them individually, but could only get both of them together.
Now it is math time:
1) Front axle weight shouldn't change much, but compare it with the factory sticker anyway.
2) Compare the rear axle weight loaded with the factory sticker.
3) Add the loaded front and rear axle weights for the truck and compare to the factory sticker - GVWR.
4) Subtract the rear axle unloaded from the rear axle loaded = pin weight
5) With the 31SL your axle weights should be well within specs. Divide the pin weight by axle weight to determine the percentage of the trailer weight on the pin.
6) Add the weights on the TV front axle, TV rear axle and trailer axles together. Compare to your trucks GCVWR.
Good luck and welcome to the forum.
Andy & Judi, Canine Companions Duke & Kona
2012 F350 Lariat CC SRW Airlift 5000 |2013 RW 36FL Winegard Trav'ler
Travel Blog: www.andyandjudi.com