Don't Give Up yet...
I have a 2012 Ford F-150 ecoboost and have been shopping for an Imagine 2500RL trailer. I'm currently researching my tow vehicle capacity and had been going by the book value for payload (1520 lbs for my model - 145" wheelbase, super crew, 5.5" bed, 4x4). I double checked my door sticker today and my gut dropped - the numbers for my specific truck are actually only 1142 lbs (stupid moonroof and other Lariat add-ons, not including the spray-in bed liner and tanoe cover I added after market...). My wife, myself and our daughter + some basic cargo in the truck would be around 400 lbs. I was looking at a Hensley weight distributing hitch that weighs around 200 lbs. That would only leave 542 lbs of remaining payload which is less than the dry hitch weight of the 2500RL (581 lbs which I'm sure would be higher with propane, batteries and a light load of food and clothing). I'm fairly certain the 2500RL is now out of reach. Can my truck safely pull anything? Even a 16' Airstream Bambi has a hitch weight of 490 lbs which would be cutting it close (its wet bath and lack of food carrying capacity and storage would have cut it from the list anyway). Unfortunately a new truck is not in the budget. Sadly I think a travel trailer of any sort no longer is either. Just wanted to check with those more experienced if I'm missing anything.
At risk of being chastised, I would offer a different opinion than some. I own a 2019 Toyota Tundra with a similar payload of 1174 and a GCWR of 15,160. I too was looking at a 2500RL but ended up with a 2018 2600RB instead. My wife loves the larger bathroom. I purchased a tongue scale before buying a trailer and measured several different trailers, including a 2500RL. The used 2500RL's I measured did not have a tongue weight of 960 and were closer to 750 with full propane and battery. My calculations showed that we would be slightly over the GVWR (Gross Vehicle Weight Rating) of 7,200 but significantly less than the Ft & Rr GAWR (Gross Axle Weight Rating) . I filled the truck gas tank, loaded the wife and 60# Grand Dog, hitched up the trailer and headed to the CAT scales. Weights as follows: Ft Axle - 3520 (4000 Rating) , Rr Axle - 3780 (4150 Rating), Trailer 5760 for a CGW of 13,060. My GVWR was 7300, 100# over.
I too considered a Hensley hitch but decided the additional weight was too much. The trailer came with a Reese High Performance Trunnion Weight Distributing Hitch, which was one of my favorites. Before my initial test drive, I was very careful to setup the hitch for my truck and to inflate the truck tires to 42 psi (Max is 45 psi). During my initial test drive, and first time driving an RV, I did notice that the rear spring rate of the truck seemed light and that road bumps could induce a mild porpoising effect that subsided after a cycle or two. After much research, I decided to add Sumo Spring and new Bilstein shocks. These changes eliminated 80% of the issue.
Since our purchase, we have traveled over 14k without any issues and without feeling unsafe. I would not pull a larger trailer with this truck but have no issues with the current setup. I am very anal to insure that wheels are torqued properly and air pressures are proper before every departure. We minimize adding additional load to the truck and load as much as possible in the trailer carefully positioned to leverage the extra 1,100 # in trailer capacity. We never carry water and always empty tanks before leaving a site, except for short lower speed trips. I'm sure that a 3/4 ton truck would do significantly better at pulling my trailer without have to carefully plan loading, but a new truck is not in the budget. I do not feel unsafe, have encountered situations requiring emergency maneuvers and braking without any issues. I drive 60-65 when conditions permit.
What are the GCWR and GAWR specs for your truck? Are the brakes in tip top shape? Are your shocks relatively new or original? Does your truck have a brake controller? Can you test drive the 2500RL? Skip the Hensley, place the additional cargo in the trailer positioned near or over the axles and you should be good to go.