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Old 04-25-2018, 07:31 PM   #1
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ford f 150 25% return with wdh

Does anyone know why ford only recommends 25 percent return of weight to front of truck with wdh. this is only on the f150 the f250 goes up to 50percent.
new eco. 12200 towing 1220 allowed on tongue with wdh. 2100 payload. pulling 7000 lb trailor with 900 tongue weight. any thoughts please.
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Old 04-26-2018, 07:45 AM   #2
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The F250 is a heavy duty truck the F150 not so.
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Old 04-26-2018, 01:40 PM   #3
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Originally Posted by SeaDog View Post
The F250 is a heavy duty truck the F150 not so.
what a terrible(typical?) explanation.


OP it likely has to do with the front axle weight rating.


FWIW i tow 38ft with 10,000 pound trailer and 1200 on tongue with almost exact same truck specs
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Old 04-26-2018, 01:55 PM   #4
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Originally Posted by thamel View Post
what a terrible(typical?) explanation.
Yours is no better, please check your attitude.

Quote:
OP it likely has to do with the front axle weight rating.
No, that make no sense. What a terrible(typical?) reason. I have no idea why Ford would only recommend adding 25% of the weight REMOVED by hitching up back to the front axle. That means the front axle is still missing 75% of the weight removed.

OP, where are you seeing this 25% recommendation? I tried searching through Ford docs on WDH setup but couldn't find anything.
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Old 04-26-2018, 02:23 PM   #5
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This has changed a lot over the years. Used to be, the recommendation was to return ALL lost weight back to the front wheels. And personally, that is still my recommendation. If the vehicle can handle X amount of weight without the trailer, it can handle X amount with the trailer. So, try to return all lost weight, to avoid potential wet-steeering problems and other issues.


As far as "why" Ford (and maybe others) started recommending returning smaller percentages of lost weight, I don't know. I've been hearing 50% for several years now. This is the first time I've heard 25%. Sometimes, you only move the needle about 3/4" when adding the trailer. 25% of that is so miniscule! You might as well not be using it at all. I believe the lower percentages are the Ford lawyers talking. They are overly-concerned about people transferring MORE than 100%, which could result in a jackknife situation under the right (wrong) conditions.


Keep in mind, the amount of sway control you get from most integrated SC-WDH...is proportional to how much you load up these systems. If you only engage the system 25%, you are getting the level of SC that you could be enjoying.


I would encourage anyone to take into account the WDH instructions as the primary. Nothing has changed with trucks that would require a change in such recommendations. As far as I know, Equal-I-zer (and others)have not made such reductions in their recommended transfer.
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Old 04-26-2018, 02:26 PM   #6
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Quote:
Originally Posted by DieselDrax View Post
Yours is no better, please check your attitude.



No, that make no sense. What a terrible(typical?) reason. I have no idea why Ford would only recommend adding 25% of the weight REMOVED by hitching up back to the front axle. That means the front axle is still missing 75% of the weight removed.

OP, where are you seeing this 25% recommendation? I tried searching through Ford docs on WDH setup but couldn't find anything.
Boys, if I have to pull this vehicle over....
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Old 04-26-2018, 04:00 PM   #7
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I'm going to leave this here, then back away slowly:

Trailer Towing and WDH calculator
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Old 04-26-2018, 04:17 PM   #8
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Originally Posted by thebrakeman View Post
Boys, if I have to pull this vehicle over....
Was just giving the new guy a hard time. I couldn't help but laugh when they gave the F250/F150 poster a hard time and then went on themselves to blame it on the axle rating as if that response was any different.

Good times. Can't wait to get out and finally go camping in a week!
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Old 04-26-2018, 05:41 PM   #9
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The reason for reduced FALR % is what’s known as the understeer gradient which effects cornering stability. Ford had to reduce FALR % to meet SAE j2807 requirements.
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Old 04-26-2018, 05:55 PM   #10
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ford fleet towing 2018 guide page has all the goodies
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