By Cheri Sicard
A lot of people buy a travel trailer, then try to figure out if their truck can handle it. Duane, a certified RV inspector from RV Inspection And Care, wanted to avoid the usual guesswork. He matched a half-ton pickup to a new travel trailer, then proved the setup on a 3,000-mile tow from New England to Arizona.
After five years of full-time travel in a diesel pusher motorhome, Duane and his family decided it was time to downsize. They still wanted to RV, but also wanted something easier to live with day to day.
Most people don’t buy the tow vehicle and RV together, so the matching part becomes a puzzle. Duane’s point is simple: The numbers are available to everyone, and using them up front can prevent costly changes later.
One key theme is that payload capacity often becomes the limit before towing capacity, especially with half-ton pickups.
Duane knew he wanted a half-ton pickup because he didn’t want a big, heavy tow vehicle as an around-town daily driver. Modern half-tons can be comfortable and still tow a lot, but they do cap trailer size.
Duane focused on three things:
- Payload capacity
- Towing capacity
- A factory upgraded tow package
He chose a used Ford F-150 with the 3.5 EcoBoost engine and the maximum Ford tow package. That gave him strong power and added cooling for towing.
Key weight ratings (and the math)
Duane started with GCWR (gross combined weight rating), which is the max the truck and trailer should weigh together. Ford listed his GCWR at 15,200 pounds.
Next was the truck’s GVWR (gross vehicle weight rating), found on the door-jamb sticker. His truck’s GVWR was 6,750 pounds.
Basic tow estimate:
- GCWR (15,200) minus truck GVWR (6,750) equals 8,450 pounds.
- He then gave himself a buffer and aimed for about a 7,500-pound trailer GVWR.
Instead of guessing, he took the truck to a CAT scale. He recommends finding one through the CAT Scale locator.
With a full fuel tank, he weighed the truck and worked out that he had about 1,400 pounds of payload remaining (based on scale weight, plus planned cargo and passengers, compared against GVWR).
Tongue weight and wheelbase: two factors that matter fast
For tongue weight, he used the common 10 to 15 percent rule based on trailer GVWR, not unloaded weight. Using 15 percent of 7,500 pounds comes out to about 1,125 pounds, which still fit under his remaining payload with some headroom.
He also used a wheelbase guideline for trailer length:
- 110 inches of wheelbase supports about 20 feet of trailer.
- Every 4 inches beyond 110 adds about 1 foot of trailer length.
With a 145-inch wheelbase, he landed at about 28.5 feet max.
Using his own buying resources, he narrowed the choices with the best brands travel trailer guidebook for new RVs and followed his new RV buying guide and used RV buying guide.
He chose an Alliance travel trailer around 28 feet long, with a GVWR of nearly 7,500 pounds and an unloaded vehicle weight listed as 5,900 pounds. On the dealer lot, he had them measure tongue weight and got 700 pounds (about 12 percent). That helped him feel comfortable that a fully loaded tongue weight would stay manageable.
Why he added a weight distribution hitch (and tow/haul mode)
Duane recommends a weight distribution hitch for half-ton towing. He installed a Blue Ox system, noting it added about 100 pounds but still stayed within payload. It took some adjustments to dial in ball height and bar tension. He also recommends using tow/haul mode to help the truck manage heat and shifting on long pulls.
Duane’s 3,000-mile test tow across mountains, hills, flats, and mixed weather went smoothly, and he credits the results to doing the math first.
The approach stays simple: Know the ratings, weigh the truck, estimate tongue weight from trailer GVWR, and keep trailer length in line with wheelbase. For anyone trying to figure out how much is too much for a half-ton pickup, his trip is a reminder that good towing starts with the numbers.
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- How vehicle wheelbase decides safe towing length
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RVDT2814
Trying to follow your reasoning. For your payload capacity, did you also add in your generator, another person or two, a 100 lb. yellow lab, 50 lbs of dog food, fishing equipment, tool box, etc. All that stuff really adds up fast.
In the early 2000’s Dodge and Chevrolet offered 1/2 ton HD 1500 trucks. Chevrolet the 1500HD, Dodge the 1500 Mega-Cab. Both offered for 3/4 ton 8 lug axles with lighter springs. Overall GVWR capacity in both vehicles was only 500 lbs less than their true 3/4 ton brothers.
I have owned several of these over the years and still have one. The one I still have is my 2006 Dodge Ram 1500 Mega-Cab 4WD Laramie!
Kinda an insurance cheater if you will. Almost the same overall hauling capacity with the lighter 1500 rating on the title!
Good information on the half ton trucks for towing. I started towing my 7,000 lbs trailer with a half ton, tow package, 6.2 L. My experience was it wasn’t real stable in winds. Further more, I couldn’t add a aux tank without exceeding the payload weights, and in a big head wind and the little 25 gallon tank, the range was horrible, always looking for gas stations. I had the truck less than a year and upgraded.
I have a 2020 Ford F150 3.5 L twin turbo crew cab with maxx tow package. I’ve been towing a 2020 30 foot Wildcat Maxx up and back to Oregon from Arizona for the last five years and had no problem whatsoever the gross vehicle weight on the trailer is 9600 pounds. Gross vehicle weight rating on the truck is 6900 pounds cargo capacity is 2100 pounds. Going uphill is no problem whatsoever and it’s never overheated. i’m very happy with its overall performance towing and for every day use.
I’ve been towing with 1/2 ton trucks for over five years Two GM trucks and Two ford F150 hybrid trucks and never had a problem. One TT I towed for three years was 34’ long. My present F150 Hybrid has the Max eTow axle, Max Tow package and 157” wheelbase. 11,100 lb towing capacity. The eco booster has a large towing capacity.
Thank you for calling attention go Duane’s video and summarizing it, Cheri! I really enjoy listening to Duane’s “radio voice,” and almost always learn something from his videos. Have a great weekend and safe travels!