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Old 09-09-2015, 01:12 PM   #1
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GKLarson is an unknown quantity at this point
elimnating sway ?

I've towed our 1950 cross country numerous times w/ our current hitch set-up w/o any sway problems.

Had a handy pal fabricate & weld a 7'x2' 100lb rack to trailer's rear frame. Maiden voyage w/ it carrying 250lb scooter was a fright due to lotsa sway @ 55mph & above. Was advised I needed more wt on tongue & to decrease # of unused links. Previously towed w/ 5 unused links on my wt dist. bars. Have tried it w/ fewer unused links (no tension on bars) but rear end still sways badly above 55mph. Should I try more unused links (more bar tension) ? Local RV dealer tech today rec'ed lowering ball ht. but haven't tried that yet either

What do you experts think ? I'd prefer mods on my existing hitch (Curt model 1702-rated 1000lbs tongue wt) before being forced to buy one w/ anti-sway bars. Need to fix this issue before next cc trip later this month
Thanx alot
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Old 09-09-2015, 01:51 PM   #2
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The reduced number of links is because of the reduced tongue weight, I don't know how that will affect sway. With your rig I'd just move weight forward. You must carry something in the truck bed that you can putinthetrailer? I'd try that. Our Reese has anti sway and we don't have any, but we also have the trailer loaded heavy in the front and no heavy weight in the back taking tongue weight off
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Old 09-09-2015, 03:07 PM   #3
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Increase weight on front of trailer. Do not travel with a full freshwater holding tank if it is behind wheels. Add a extra battery to tongue. Adjust chains to make sure trailer is riding level. Move canned goods forward. Your hitch weight was probably not much more than a few hundred pounds and you say you added hundreds to the rear. Now your hitch weight in probably only a few hundred pounds, if that much. You have changed the balance of your camper so need to recheck weights and bring tongue weight back to the recommended percentage of total weight.
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Old 09-09-2015, 04:23 PM   #4
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Thanx Tod & Jim for the replies
I carry lotsa stuff in back of our Tundra TV under the cap but I'm reluctant to move any of it into the trailer to balance it as I'd just have to move it somewhere else each time after a move to regain the living space it occupied.
Fresh, black & grey water tanks were all empty when nasty sway occurred.
I hope to cure problem w/ hitch adjustments, if possible ???
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Old 09-09-2015, 05:13 PM   #5
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If your tongue weight is around 400 lbs, you have almost eliminated it. Very dangerous I would not recommend this setup at all.
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Old 09-09-2015, 06:42 PM   #6
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Quote:
Originally Posted by GKLarson View Post
....
I hope to cure problem w/ hitch adjustments, if possible ???
That is not possible. The 100# rack and 250# scooter have removed too much tongue weight. Nothing you do to the hitch will correct the problem. An anti-sway device will not be of much help either. You really need to have 10% to 15% of your total trailer weight on the tongue.
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Old 09-09-2015, 07:23 PM   #7
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This modification could leave you open to serious liabilty issues should an accident occur because of an unsafe condition. The fact that you towed many times previous to this mod without issue should give you a clue as to the reason for the change in handling.
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Old 09-10-2015, 07:47 AM   #8
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It's interesting that you ever had 1000# bars in the first place, IMHO. I find it hard to believe you ever had that kind of tongue weight to start with, tough not impossible. The dry weight of the T-1950 is what about 380 lbs.?

Just an observation. How many pounds would you guess you generally have behind the rear axle of the truck?
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Old 09-10-2015, 09:05 AM   #9
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Bunjin, he said his hitch was rated for 1000# of tongue weight. Not the torsion bars. I hope you meant tongue weight is 350 lbs. I think the trailer weighs a good bit more that. If his tongue weight on the 1950 is only 380 lbs and he added 350 to the rear, I wonder what his tongue weight is now! Put anything in the tanks or inside behind the wheels and he'll be lifting the rear of the tow vehicle.
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Old 09-10-2015, 11:59 AM   #10
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Thanks, I missed the "rated" tongue rate and yes I indeed meant 380 lbs tongue weight stated by Sunline. Just goes to show when in a hurry mistakes happens.

Good catch!

Your kinda hitting on what I was thinking as to the trailer trying to lift the truck. That is why I ask how much weight in the back of truck.
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Old 09-10-2015, 03:58 PM   #11
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If the maximum weight rating of the camper is reached, 5000#, then the TT tongue weight, at 15% would be 750#. I would guess the scooter carrier at maybe 75#, if not more. Add the scooter, 250# plus 75#, and carrier to get 325#. The reduced hitch weight may be less than the full 325# determined by how balanced on the axle the weights are. Just to keep numbers simple I would say 750# less the 325# has a potential hitch weight of425#. Maybe 1/3 the recommended hitch weight.


Making up for this difference in weight probably cannot be "adjusted" using the hitch adjustments. I say that because if the equalizer bars were completely removed the hitch weight would still be less than needed.


You can add sway control to your existing hitch instead of buying a whole new hitch. Use your equalizer bars to level the camper and TV then use the sway control to hold it all in a straight line. Might work.




Added: I forgot to mention that adding weight to the truck will only have the tail wagging a fat dog. It isn't the truck causing, or stopping, the swaying. It is how the camper is balanced and that balance is now upset.


Just my opinion.
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Old 09-10-2015, 08:33 PM   #12
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Using less tension on the bars is also removing some downforce on the front axle, which will also destabilize the steering thus adding to difficulty in controlling sway. I think the bigger question is do you really need the scooter and if so, is there any way to put IT in the truck bed? This whole setup has me worried for the safety of you and your family.
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Old 09-11-2015, 08:08 AM   #13
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Thanx to all for trying to help me solve this issue
We spend 6 months/yr boondocking in some remote areas of the SW. The idea of the scooter was to make for a cheaper ride to town rather than driving the TV. (Plus some fun) It will stay @ home, however rather than creating a dangerous towing situation. I have a cap on my TV which keeps items in truck bed secure & out of weather but prevents loading the too tall scooter in truck bed w/o laying it on it's side
Although I'm reluctant to moving lotsa stuff to front of trailer to offset rear wt of scooter, I'll give it a try. I can fill 3 6gal water jugs (each 48lbs) & 2 50lb cased portable solar units & place all in far front of trailer hoping that 250lbs will offset the 350lb scooter/rack wt. If this eliminates sway will consider traveling w/ that arrangement despite having to move all that front wt after each move when we wanna use the trailer's living space.'
Another concern is sway happened when my fresh, grey & blackwater tanks were all empty. Both black & fresh water tanks are located behind rear axle while grey is centered over front axle. As each of these accumulates wt it will offset any efforts I make to add wt to trailer's front
BTW on last test tow I had no tension on wt dist bars thus allowing (I think)tongue to take all possible wt of trailer current balance situation
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Old 09-11-2015, 09:02 AM   #14
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Glen,

You may want to consider a front hitch mount for your truck and move the scooter up there.

Etrailer sells them. I had consider the mount to help me move my trailers around in my tight area at home.

I'm linking you to their page. General mounts

Front Truck hitch for tundra | etrailer.com
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