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Old 10-22-2015, 07:28 PM   #1
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Cargo carrier and tongue weight reduction????

I'm adding a lightweight cargo carrier to the rear of my travel trailer by having a receiver welded on to the frame. So, the carrier will weigh 28 lbs. (unloaded) and I wouldn't carry more than 200 lbs. of cargo on it. Is there a mathematical formula that can be used to determine how this will reduce the tongue weight? My trailer, fully loaded for travel is 6500 lbs. Will adding 230 lbs. in back of the bumper reduce the tongue weight to cause a problem or require tweaking the WD hitch? Thanks for any help you can provide!!
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Old 10-22-2015, 08:41 PM   #2
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Can't help with your question. But don't forget to add the weight of the receiver being welded to the frame.
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Old 10-22-2015, 09:22 PM   #3
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Originally Posted by scbwr View Post
I'm adding a lightweight cargo carrier to the rear of my travel trailer by having a receiver welded on to the frame. So, the carrier will weigh 28 lbs. (unloaded) and I wouldn't carry more than 200 lbs. of cargo on it. Is there a mathematical formula that can be used to determine how this will reduce the tongue weight? My trailer, fully loaded for travel is 6500 lbs. Will adding 230 lbs. in back of the bumper reduce the tongue weight to cause a problem or require tweaking the WD hitch? Thanks for any help you can provide!!
Too many variables. The length from the hitch to trailer wheels, the length from the carrier to the trailer wheels, and the distance between the axles all need to be known to get any kind of formula.

Just know that adding 200# to the back does not automatically reduce tongue weight by 200#. But, it does add 200# whose momentum will add to any sway present already. This is why toy hauler bumper pulls have axles set farther back than equal sized travel trailers.
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Old 10-22-2015, 09:29 PM   #4
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Like has been said, to many variables. You could get yourself a tongue weight scale, weigh just the tongue, put 100 pounds on the rack, and check the difference. You could then get a formula to work with in the future.

Safety wise, keep it as light as possible back there. As mentioned, sway.
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Old 10-22-2015, 09:37 PM   #5
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Multiply the weight of the loaded carrier by the distance from the center of the carrier to the center between the axles. Divide that number by the distance from the center of between the axles to the hitch.

That will be the approximate wieght difference on the front.
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