Forum Discussion

mitw44's avatar
mitw44
Explorer
Sep 16, 2013

Setting up WDH for new truck

I wanted to share my experience with following the sticky thread at the beginning of the "Towing" forum for setting up a WDH (http://www.rv.net/forum/index.cfm/fuseaction/thread/tid/17730894.cfm).
The reason I needed to perform this procedure is that I traded in my 2004 Tundra (that already was set up for my Toy hauler) to a 2009 F250 extended cab, 4x4 shortbed. The Tundra sat considerably lower than the F250, so the ball started off being several inches above the toy hauler trailer tongue coupler. The Toy Hauler is a Work and Play 18EC. Following the steps in the sticky, here are my measurements:

Unhitched:

1. I leveled the toy hauler by measuring from the front and rear of the trailer to the ground. I obtained level at 19 3/8" front and rear.
2. Step 1 resulted in the inside of the trailer tongue coupler at 23 3/8".
3. I set the top of the receiver hitch ball at 23 1/4. I have a Curt Hitch and the adjustments are done by 2 bolts running through a vertical riser that holds the ball to the receiver hitch. The bolt holes are 1 1/4" apart. I don't know if other hitches allow a finer adjustment or not.
4. The front wheelwell of the truck to the ground measured 39 3/4". The rear wheelwell to the ground measured 40 3/4". Again, this is unhitched.

Then I hooked up the trailer to the ball without the weight distribution bars:

1. The front wheelwell of the truck moved up to 40 1/4". My rise is 1/2".

Now I hooked up the bars:

1. With 3 links hanging from the chain, the front wheelwell measurement came down to 40 1/8". I thought I could do a little better, so I put more tension on the bars by hanging one more link, for 4 links hanging from the hooks attached to the trailer. This brought the front wheelwell measurement down to 40". This removed exactly half the rise that the trailer tongue weight caused before application of the weight distribution bars.

The next step is to see if your trailer is level. The sticky procedure says this final adjustment is done by adjusting the receiver ball height.

Here are the measurements on my trailer after snapping up the WDH bars:

Toyhauler Front to ground: 18 3/16"; Rear to ground 20".

The body of the trailer is 20 foot. This is a 1 13/16" drop from rear to front over 20 foot of length. The procedure says if level can't be obtained, it is better to be slightly nose down.

Since my hitch ball can only adjust in 1 1/4" increments, I am thinking this is about as close as I can get. Again, if there is a hitch that gives a finer adjustment, I would have tried a little adjustment.

Here are a couple of pictures, first of the truck and trailer after this procedure, and the second is of the hitch I use to let you see the adjustment I have to work with. I took the picture after removing the propane and batteries. I did the procedure with them on to account for their weight. The trailer was also loaded with our normal stuff. We don't carry toys at the moment. The thought is I will carry bikes, kayaks, a motorcycle, or a quad, not all at the same time.

I am curious if any one can add some real life pointers to help me in this. My RV dealer is 20 miles away, and I didn't want to load it up and drive 20 miles hooked up wrong to let them adjust it for me.



  • It's even harder to tell from pics. Personally, I am big on contacting manufacturers who have real engineers and design specs who can give knowledgeable advice based on what they designed. Saw a tag on the head, if all the parts are original to each other, Curt should be able to quickly make a recommendation. Good luck!
  • During the adjustment, I had actually taken one of the spacers (washers) out, thinking I was doing a "good" thing by making the ball vertical! Now I know why the spacer was in there. It would help with the bars being more parallel, plus the dealer had set three links hanging on the Tundra setup. The bars looked parallel on my old truck/current trailer. Duh!

    So I guess I will add at least that one spacer back. The part of the hitch holding the ball has oval holes, which allow tilting the head some. One of the pictures I am attaching shows the spacers from the "above" angle. There is a bolt on the underside to tighten up the hitch ball against the spacers.

    Looking into this has led me to a couple more questions:

    1. The receiver hitch is a Curt model 17001. It lists the trailer weight as 10,000 lbs max (my trailer GVWR is 9636 lbs), and the tongue weight as 800 lbs max. Even at 6000 lbs loaded (probably where I am at), 15% of the weight would be 900 lbs. Do I need a sturdier hitch?

    2. I show a picture of my WDH bars. I could not find a marking on them indicating their weight rating. How will I know if my bars are up to the task? This whole setup came from my first TT, a Surveyor 235, which I think was around 3500 lbs shipped, and 5000-6000 lbs GVWR.

    I appreciate the help!





  • Check the owners manual for the truck. Your measurements appear to be within Ford specs on weight distribution.

    My F250 owners manual has a section on adjusting WD hitch. It specifies + / - 1/2 inch difference on front (unhitched and hitched with WD) bumper measurement, and, rear bumper height, no higher than unhitched measurement.
  • Mit, you are on the right track, but you may want to look at the # of links you have dropped. Most hitches recommend dropping no more than 3 links. That gives enough length on the chain to allow for tight turns. You probably need a little more pitch on the head. I would start with 2 washers and see what happens. Remember, when you are tightening the bars, the higher the tongue & ball, the easier it is to tighten the bars. When you have full weight on the bars, they should be even with the A-frame. Yours are way too high due to the # of links. It has been my experience with the last 3 trailers and 4 trucks that there will always be some squat on the rear end, and is considered normal and within range from the truck manufacturers. I too prefer a little nose down on the trailer. It helps prevent sway. One sway bar would be a good idea, and they're cheap. Equalizer has a good web site with instructions and diagrams for installation. Let er squat a bit and go and enjoy!
  • Bob/Olallawa wrote:
    If anything, I would tilt the head back a bit so the bars are close to level with the tongue A-frame when hitched up. That and when you set it up were the propane and battery in place?


    The head does have spacers to adjust its pitch. I will take a look at that.

    The battery and propane were on at the time I adjusted it. I wrote all my numbers down as we were doing it, but forgot to get pictures until after I was home and took the propane and battery out for secure storage until I take it out in a few days.
  • If anything, I would tilt the head back a bit so the bars are close to level with the tongue A-frame when hitched up. That and when you set it up were the propane and battery in place?
  • It tows well. There is a friction-type sway control bar that goes on the passenger side of the hitch. It is not installed in the picture.
  • I might add that the Work and Play lists a shipped weight of 5135 lbs, with a maximum cargo capacity of 4501 lbs, which I take to mean is a 9636 lb GVR.

    The truck lists a 2437 lb cargo capacity on the yellow door sticker.

    The picture is in my yard, but I did the set up on a flat, level concrete area not far from the house.

    I also did a 20 mile test tow afterwards, and it seems to pull well.
  • Looks good, How does it tow? IF there is no sway. And there shouldn't be. Put a Sway control bar on it, and call it done

About RV Tips & Tricks

Looking for advice before your next adventure? Look no further.25,115 PostsLatest Activity: Feb 27, 2025