Here's a copy of the person's email back to me after asking them about the weight. Pretty informative, if you ask me:
Gary,
Thank you for contacting Progress Mfg Inc. with your questions about the Equal-i-zer Hitch.
Your Question:
"We ordered a 28' Toy Hauler. The brochure says it has a hitch weight of 1,338 and GVWR of 13,000 lbs. I would imagine we should go for the 14,000 lb hitch, correct? Also, is tongue weight and hitch weight the same?
The only item I have is the hitch receiver and the brake controller. What exactly do I need from here?"
Answer:
Hitch weight and tongue weight are different terms for the exact same thing. Since your trailer has a dry hitch/tongue weight of 1,338 lbs., then you definitely need our heaviest hitch model, which is the 14,000 lb. Hitch. The 12,000 lb. Hitch should only be used on trailers that will weigh less than 12,000 lbs. at all times, and that will have less than 1,200 lbs. in loaded tongue weight at all times.
However, your trailer may end up with too much tongue weight in some cases even for our heaviest hitch. The 14,000 lb. Hitch is rated to handle up to 14,000 lbs. in Maximum Trailer Weight, which is higher than the 13,000 lb. GVWR of your trailer, so you are covered on trailer weight. But a dry hitch/tongue weight of 1,338 lbs. is only 62 lbs. below the 1,400 lb. Maximum Tongue Weight Rating. You should not have more than 1,400 lbs. of tongue weight at any time on the 14,000 lb. Hitch.
Now toy haulers are a bit different. They are intentionally designed with a heavier-than-normal tongue weight in order to counter-balance the heavy weight of the "toys" that you will be loading in the rear. This counter-balancing effect essentially can balance out the trailer and reduce the tongue weight, but only if you are putting enough weight behind the axles, and not too much weight in front of the axles.
Some people will occasionally use toy haulers as a basic travel trailer, which means no heavy toys in the rear to counter-balance the very heavy tongue weight. This is the situation that a toy hauler will have the heaviest possible tongue weight, which for your trailer will probably begin to exceed 1,400 lbs. If you plan to ever tow without "toys", then you better plan on loading very heavy amounts of cargo in the rear to create the same counter-balancing effect. Otherwise, you will probably end up with too much tongue weight for the hitch to perform properly. In other words, you may get too much squat and be unable to transfer all the weight, and it may not be able to stop all the sway. Also, the warranty may be voided if you exceed the 14,000/1,400 lb. Maximum Weight Ratings.
As long as you can "tip the scales to your favor" by having more weight in the rear of the trailer at all times, this should give you the ability to moderate the tongue weight so that it does not exceed the 1,400 lb. Maximum Tongue Weight rating on the 14,000 lb. Equal-i-zer Hitch. You need to consider where all your fluid holding tanks are located, as the weight of water and fuel essentially is cargo too, so try to figure out what happens if you fill all your tanks. Are your tanks behind the axles? I would hope so for your sake, as having them behind the axles when full will provide you with counterbalancing weight (even if you don't take the toys).
But if these tanks are in front of the axles and you will be filling these up, this will cause the tongue weight to become even heavier (unless you add even more weight to the rear for counter-balance). What some people have done that have front water tanks (150 gal. fresh water tank adds 1,251 lbs. of weight), is they have filled some fresh water in separate 5-gal. tanks (or other sizes), and positioned those in the very back of the trailer. That way they can still travel with the water they need, but place the weight of that water in a better position (to the back) to prevent too heavy of a tongue weight. When you reach your camping destination, that water can be added to the trailer's normal fresh water tank for use.
The Equal-i-zer Hitch comes with everything it needs, except for the hitch ball. You will need a hitch ball with a weight rating of 13,000 lbs. or higher, and the ball diameter will probably be 2 5/16". The ball shank (the threaded shaft at the bottom of the ball) needs to be 1 1/4" in diameter by 2 1/4" in length. We offer a 2 5/16" Equal-i-zer Hitch Ball rated to 14,000 lbs. with those exact ball shank dimensions for $22.95 plus shipping (http://www.equalizerhitch.com/store/index.php?p=catalog&parent=4&pg=1).
Every Equal-i-zer Hitch also comes with the standard Shank (90-02-4100) that comes by default, unless you specify otherwise. This Shank provides the minimum range of drop and rise (3" drop/7" rise), which works for probably 80% of the tow vehicle/trailer combinations out there. However, sometimes there is a vehicle/trailer combination where the receiver tube and trailer coupler are too far apart to use this Standard Shank, so longer Shanks are needed. Please use our Shank Selection Tool at the bottom of our Tech Specs page to find out which Shank you need for you towing set-up: http://www.equalizerhitch.com/productinfo/tech_specs.php
Please let me know if you have any questions about this.