Re: question aboutn travel trailer brakes
Interesting question and this is one that many people ask when are considering buying a travel trailer. There are a couple of key things to keep in mind that you need to know from your truck owner's manual and that you need to know about the trailer that you are considering for purchase. For your truck you need to know:
1. The Gross Vehicle Weight Rating (GVWR) of the truck - this is the total weight that the truck axles can carry.
2. The curb weight or empty weight of the truck - this is the weight of the vehicle itself.
For example: The GVWR of a truck is 6,900 pounds and the curb weight of the truck is 5,400 pounds. You subtract the curb weight from the GVWR leaving a total of 1,500 pounds of cargo capacity. 1,500 pounds is all the weight that you can add to your truck's axles before you exceed the capacity of your truck.
How does this relate to a trailer?
For the trailer you need to know the GVWR of the trailer (the total weight the trailer is designed to carry) and the tongue weight. With travel trailers most of the weight of the trailer is carried by the axles of the trailer, but some of the weight (typically 10-12% for a bumper pull trailer) is transferred to the tow vehicle through the tongue. If you have a trailer with a GVWR of 7,000 pounds and a tongue weight of 820 pounds this means you are adding 820 pounds of weight to the truck through the tongue when you are pulling the trailer.
How does the math work up?
1. Find the cargo carrying capacity of your truck (GVWR minus the curb weight). 1,500 pounds in the example above
2. Figure out generally how much cargo and passenger weight you will have in the truck (2 people + 1 dog + 2 kids) 500 pounds
3. Subtract the the cargo and passenger weight from your cargo carrying capacity - now we have 1,000 pounds of capacity left to work with
4. Compare the remaining capacity to the tongue weight of your trailer - 820 pounds of tongue weight will work!
820 pounds of tongue weight is a lot of trailer...you may likely find that you can pull a 25-26 foot long travel trailer with your half ton truck. Most bumper pull travel trailers are designed to work with half ton trucks. Of course, each truck is different, so be sure to verify all of the weights and double check with the camper sales vendor when you go to buy.
What equipment will you need:
1. I would recommend a trailer brake controller. The Prodigy mentioned before is a great controller and that's what I have in my truck.
2. For a heavier trailer (e.g., over 5,000 pounds) I would suggest a weight distribution hitch. This will smooth out the ride and better distribute the trailer's weight between the tow vehicle and the trailer.
3. Add an anti-sway bar on the hitch. A weight distribution hitch will not keep your trailer from swaying when you're passed by a semi-tractor trailer on the highway. An anti-sway will help you.
Lift bags? Not necessary...they will not increase your weight capacity, but they can help level out the load.
We've got a video podcast on this topic coming up next week on our
camping blog. Stop by and visit if you want more details.