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Old 09-09-2020, 12:29 PM   #1
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Travel Trailer Bouncing

Iím trailering my Jayco 27 Whitehawk (6852 lbs) with my 1500 GMC Sierra 5.3 (11,200 tow capacity) along I80 in Iowa a 65mph and boy am I bouncing!
Would a shock upgrade be helpful?
Capt Dan
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Old 09-09-2020, 12:48 PM   #2
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Truck is bouncing or trailer. Do you have wd hitch ? Is this a new issue ? I am thinking more info is needed.
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Old 09-09-2020, 02:01 PM   #3
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Iím trailering my Jayco 27 Whitehawk (6852 lbs) with my 1500 GMC Sierra 5.3 (11,200 tow capacity) along I80 in Iowa a 65mph and boy am I bouncing!
Would a shock upgrade be helpful?
Capt Dan
It sounds like you may have too much tongue weight, requiring too much spring tension on your weight distribution hitch. Have you weighed the tongue?
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Old 09-09-2020, 03:18 PM   #4
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My thought is too little tongue weight. But the best way to tell for sure is to try to figure that out by going to the CAT scale. One with just the truck, then within 24 hours I think you get a second weight for $2.

That plus your WD hitch might need to be adjusted.
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Old 09-10-2020, 07:08 AM   #5
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Truck is bouncing or trailer. Do you have wd hitch ? Is this a new issue ? I am thinking more info is needed.
Itís a new issue while driving on the Interstate 80 which is concrete and scalloped by trucks. I am also using a Equal-I-Zer 10K anti sway system that also distributes a tongue weight of 1K. My truck and trailer TW are matched.
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Old 09-10-2020, 07:09 AM   #6
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It’s a new issue while driving on the Interstate 80 which is concrete and scalloped by trucks. I am also using a Equal-I-Zer 10K anti sway system that also distributes a tongue weight of 1K. My truck and trailer TW are matched.
DJT
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Old 09-10-2020, 07:10 AM   #7
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Itís a new issue while driving on the Interstate 80 which is concrete and scalloped by trucks. I am also using a Equal-I-Zer 10K anti sway system that also distributes a tongue weight of 1K. My truck and trailer TW are matched.
DJT
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Old 09-10-2020, 08:58 AM   #8
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so is this a new issue in the sense that you've towed on I-80 before and it didn't happen or that this is the 1st time you towed on I-80 and it's the 1st time you got the bouncing effect?
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Old 09-10-2020, 10:30 AM   #9
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1st time on I80 which need repair. Never had this issue out East in NJ. Got a lot colder out here in Iowa/ Nebraska so I put more air in the TT tires to 80 psi. They were at 74/75 psi before adding air. Better ride here in SD with a different type paving on I90
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Old 09-10-2020, 11:10 AM   #10
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It sounds like you may have too much tongue weight, requiring too much spring tension on your weight distribution hitch. Have you weighed the tongue?


Agree with this 100%.

OP- how much squat do you get with your truck before the WDH is installed.
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Old 09-11-2020, 07:34 AM   #11
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(Squat) The truck and TT are relatively level
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Old 09-11-2020, 07:27 PM   #12
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If it tows fine in all other conditions and this was a one off occurrence. Slow down. The wheel bases of the truck and trailer may be 'in tune' with the pavement undulations causing the issue. This is assuming that the truck and trailer are properly set up. Better yet get off the interstate and use US highways which generally are a much more relaxing drive for both the equipment and driver.
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Old 09-12-2020, 07:25 AM   #13
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Good suggestion. Thank you
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Old 10-08-2020, 05:25 PM   #14
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I have the right hitch, sway bars, tire pressure. Discovered coming home thru Wyoming that I had two leaf spring brackets broken on the rear axle. Caused two tire failures too. Then, in Ohio, a spindle went on me too! UUUGGGHH!
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