TV receiver hitch questions

[TexasA&M]

Why are some receiver hitches rated to take the same max trailer weight, regardless of weight distribution, but some need WD in order to achieve a higher max trailer weight?

For instance, these are the ratings for the hitch on my 2005 4Runner -

Weight carrying -
Max Trailer weight - 7,300lbs
Max Tongue weight - 730lbs

Weight Distribution -
Max Trailer weight - 7,300lbs
Max Tongue weight - 1,095lbs

In this case, the max trailer weight doesn't change... it make sense that the tongue weight rating changes due to the WD, and it also make sense that the total weight rating does not change, because the total weight does not change when you add a WDH setup.

Now, here are the ratings on my 2006 F250 -

Weight carrying -
Max Trailer weight - 6,000lbs
Max Tongue weight - 600lbs

Weight Distribution -
Max Trailer weight - 12,500lbs
Max Tongue weight - 1,250lbs

I find it very difficult to believe that the hitch on my 4Runner is stronger than the hitch on my F250, but it is rated for a higher capacity when a WDH is not involved.

What's the deal with this?

[Rustic Eagle]

Good question.

First, we all know that when it comes to maximum tongue and towing weights the TV's WC/WD specifications take precedence over what the TV's receiver weight rating sticker says.

I'm guessing here, but receiver Class ratings, mounting, and/or style of receiver may play a part in your observations..., or in the case of your 4Runner the 7,300lb receiver limit may also be reflecting the TV's specified Towing capacity (?).

I often wondered on TV OEM receivers who places the WC/WD weight rating sticker on them, the Auto manufacture or the Receiver manufacture? I'm sure the Receiver manufacture controls the maximum limit of the receiver based on it's application.

Bob

[David472]

I have worked at a Tier 1 auto parts supplier, in engineering. The OEM (like GM Ford Toyota) are the ones who control the design and specifications. It's up to the suppliers to follow the specs given to them, meaning design shape, materials and assembly. So, the supplier puts the label on, but....you get the idea.