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Old 06-05-2019, 10:43 AM   #1
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How much does your tongue weight change?

Bought a Sherline tongue weight scale to figure out my tongue weight. Took it multiple times. I was around 750 pounds "Semi Loaded" GTW is 7687... I can't imagine me adding much more weight. Maybe a couple hundred pounds near the axles and towards the front of the trailer to get to that 10-15%. Any advice?

Basically my question is, if anyone has actually gotten their tongue weight loaded and unloaded and how much it changed. Our trip is coming up fast and I might have to take the weight under the jack vs. under the tongue like I did the first time.
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Old 06-05-2019, 08:23 PM   #2
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You need to get a actual weight of your trailer to determine what you need at the tongue for weight. Even with the numbers you have you are under the minimum that is recommended of 10%. You should be between 10-15% of your total weight of the trailer. So if you were to be very generic in your weights and went off the GVWR of your TT of 7687 you would need a minimum of 768#. Donít guess at your weights you could end up having issues that you may not be able to control. My suggestion is if you have it loaded take it to the scales and weigh everything and go from there. Just not enough info to make a sure suggestion to you. Good luck.

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Old 06-05-2019, 08:33 PM   #3
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My TT has a brochure dry tongue weight of 620lbs.
Weighed on my Sherline, it was 750lbs, with only basic stuff in the trailer.
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Old 06-05-2019, 08:40 PM   #4
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$10 to weight at almost any truckstop
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Old 06-05-2019, 09:55 PM   #5
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"Advertised": Brochure for my Grey Wolf 25RL lists the unloaded vehicle weight as 4,777 lbs and dry hitch weight as 633 lbs (tongue weight = 13.3% of UVW).

"Actual": CAT Scale says the trailer weighs 5,220 lbs loaded on the road. Sherline scale says hitch weight is 760 lbs (tongue weight = 14.6% of loaded trailer weight).
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Old 06-06-2019, 05:11 AM   #6
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Quote:
Originally Posted by Infinite_Enigma32 View Post
Bought a Sherline tongue weight scale to figure out my tongue weight. Took it multiple times. I was around 750 pounds "Semi Loaded" GTW is 7687... I can't imagine me adding much more weight. Maybe a couple hundred pounds near the axles and towards the front of the trailer to get to that 10-15%. Any advice?

Basically my question is, if anyone has actually gotten their tongue weight loaded and unloaded and how much it changed. Our trip is coming up fast and I might have to take the weight under the jack vs. under the tongue like I did the first time.
I check the tongue weight every pull. The sticker on the side of my trailer listed the tongue weight just under 1000lbs empty. I have seen up to 1500lbs. My trailer is a toyhauler and the load varies considerably with how it gets loaded.

You say 'semi loaded' and then give the trailer's GTW...the actual amount of load makes a difference...are you at 6700lbs or 7700lbs? If you are anywhere close to the upper number I would be concerned enough to increase the tongue weight before pulling by moving some stuff to the forward end of the trailer. -Be mindful of your truck's payload.
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Old 06-06-2019, 09:20 AM   #7
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Thanks for the replies. I won't ever be close to the actual GTW. We never fill the FWT, have a handful of camping chairs, a table top Coleman Stove, food for 4-5 days... I know it adds up fast, but can't imagine even touching the top weight. My plan is to load it completely for the trip and take the tongue weight and go to a CAT scale that's right down the road. If my numbers aren't close, I'll rearrange before starting the trip. Was just curious how much of a change you noticed if you do check your tongue weight.
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Old 06-06-2019, 07:41 PM   #8
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Huge difference

Quote:
Originally Posted by Infinite_Enigma32 View Post
Thanks for the replies. I won't ever be close to the actual GTW. We never fill the FWT, have a handful of camping chairs, a table top Coleman Stove, food for 4-5 days... I know it adds up fast, but can't imagine even touching the top weight. My plan is to load it completely for the trip and take the tongue weight and go to a CAT scale that's right down the road. If my numbers aren't close, I'll rearrange before starting the trip. Was just curious how much of a change you noticed if you do check your tongue weight.
I could make a huge difference by simply moving my two toolboxes from the tow vehicle to the front of the travel trailer. One's 40 lbs and the other is 50.

Larry
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Old 06-07-2019, 11:46 AM   #9
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My rear axle weight was 3240 w/o trailer and full gas tank(34 gal). With trailer and full gas it was 4980. With trailer and gas 1/4 full it was 4580. Amount of gas makes a big difference on drive wheels even tho togue loading from trailer would not change, so what is more important tongue load or drive wheel load?
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Old 06-07-2019, 12:50 PM   #10
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My rear axle weight was 3240 w/o trailer and full gas tank(34 gal). With trailer and full gas it was 4980. With trailer and gas 1/4 full it was 4580. Amount of gas makes a big difference on drive wheels even tho togue loading from trailer would not change, so what is more important tongue load or drive wheel load?
Those numbers don't look right. 1 gallon of gasoline weighs 6.217 lbs, round that up to 6.5 for variation between blends. Your saying that 165.75 lbs of gasoline adds 400 lbs to your rear axle weight?

gallon of gasoline = 6.217lbs, gallon of diesel fuel = 6.943lbs, gallon of water = 8.3lbs

34gal x 6.5 = 221 lbs
221 x .75 = 165.75 lbs
RAW with trailer and 34 gallons of gas = 4980 lbs
RAW with trailer and 8.5 gallons of gas = 4580 lbs
4980 - 4580 = 400 lbs
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Old 06-07-2019, 01:09 PM   #11
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I agree with your numbers, but that is the numbers based on my TV fuel guage. The only other variable would be the fresh water tank reading which is not very accurate. My only question is which is most important, drive axle weight or tongue weight?
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Old 06-07-2019, 01:22 PM   #12
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One other thing I noticed that the trailer axle weight went from 8940 with full tank to8800 with 1/4 full tank. I don't know the accuracy of the scales, although these weights were from the same Loves location..
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