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Old 07-16-2013, 12:49 PM   #11
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Interesting conversation. I get some of that 'bounce' on concrete highways. Feels like it's back at the hitch. This weekend we're goig on our third trip since getting the trailer last month, and give it another evaluation. It's smooth as can be on asphalt roads, but it really 'bump bump bump' (say that real fast) on the concrete due to the seams.

Tech at the dealer (I'm lucky to have a good dealer) is not sure. He commented he gets a bit of bounce on some of the concrete highways as well with his set up (Ram 2500, 30' trailer). He says he hears that a lot with full-size vehicles (trucks and vans.) As some of you have commented, he suggested moving some more weight when we pack to the front of the trailer. But if it does need adjusting, it'll be free of charge. I think I may need to move the hitch head height down a notch. My spring bars are 550#, so I 'm pretty sure I'm not too tight there. If I get an adjustment, I'll post so the OP can have something to go by. Good thread.
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Old 07-16-2013, 12:49 PM   #12
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Quote:
Originally Posted by jeeplj8 View Post
Given that, 900 pounds is not much to put on the back of a 1 ton van. have you tried pulling it without any WDH hooked up?
The hitch on the van says anything over 600# requires a WDH hitch so that is not an option.
Any thoughts on air bags? I had them on my last two TV's and liked them a lot to firm up a soft suspension. I really never thought I would need them on this vehicle though and they are a fair bit more cash for this vehicle compared to my last TV's.
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Old 07-16-2013, 12:52 PM   #13
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If the other suggestions don't help you may want to consider installing Sulastic Shackles,they should smooth out your ride and won't effect the load rating of the van, I've heard nothing but good reviews from people who've installed them.
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Old 07-16-2013, 04:04 PM   #14
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If the other suggestions don't help you may want to consider installing Sulastic Shackles,they should smooth out your ride and won't effect the load rating of the van, I've heard nothing but good reviews from people who've installed them.
That's something, I have never seen those before. Does anyone on here actually use them?
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Old 07-23-2013, 02:44 PM   #15
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Thanks everyone! Any more suggestions?
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Old 07-23-2013, 03:31 PM   #16
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Yes, but you won't like it. Put shocks on the trailer. Did it to my 5er and it stopped all dolphining, chucking etc. I know you have a tt but I suspect the trailer is bouncing and telegraphing it to the hitch. Don't want the hassle of putting shocks on the trailer, then if it were me, I would try it with no bars and then put the bars on and put the least amount of tension in the chains, like in the last link or next to last. You have nothing to loose and everything to gain and the experiment with little or no tension on the chains is FREE.
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Old 07-23-2013, 03:41 PM   #17
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looking at your trailer, the axles seem to be just aft of the center line - probably most of the weight from the factory is behind the axles, which makes the trailer want to teter-toter... try desperately to max out the tongue weight that your van can take (shifting weight in the TT) and in theory it should stop the trailer from wanting to teter-toter so vigorously.

I highly doubt you're anywhere needing air bags as an assist... when you say it bounces... do you mean like a Caddy floating down the road, or like a box truck with the tires "hopping"

My 1ton DRW pickup "hops" down the road empty and with my light trailers on the back. Dropping tire pressure to 65 front and rear has helped greatly with lighter loads.

I wish you the best of luck and hope that my thoughts may help you in some way with resolving your issue
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Old 07-23-2013, 03:46 PM   #18
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Quote:
Originally Posted by strokendiesel002 View Post
looking at your trailer, the axles seem to be just aft of the center line - probably most of the weight from the factory is behind the axles, which makes the trailer want to teter-toter... try desperately to max out the tongue weight that your van can take (shifting weight in the TT) and in theory it should stop the trailer from wanting to teter-toter so vigorously.

I highly doubt you're anywhere needing air bags as an assist... when you say it bounces... do you mean like a Caddy floating down the road, or like a box truck with the tires "hopping"

My 1ton DRW pickup "hops" down the road empty and with my light trailers on the back. Dropping tire pressure to 65 front and rear has helped greatly with lighter loads.

I wish you the best of luck and hope that my thoughts may help you in some way with resolving your issue
If the axles are aft of the centerline, the majority of the weight is between the axles and the tongue unless I misunderstand the meaning of aft.
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Old 07-23-2013, 04:15 PM   #19
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I lost my train of thought while typing

Quote:
Originally Posted by OldCoot View Post
If the axles are aft of the centerline, the majority of the weight is between the axles and the tongue unless I misunderstand the meaning of aft.
I apologize, I should have elaborated. You understand my use of aft correct sir.

In an effort to help salespeople sell TT's easier(can be towed according to it's empty weight by a larger variety of vehicles), manufactures seem to be doing everything they can to keep the tongue weights low (light). It seems to me as though they aren't putting the axles far enough back, and putting the majority of the permanent weight behind the axles. Not to the point that it will sway violently from being too tail heavy, but enough to highly encourage porpoising.

I think that installing shocks as recommended by OldCoot would be the best starting spot.

I guess to sum up my thoughts -
1 no air spring assist needed on your new van, it's not close to being taxed.
2 vans are rough rides, typical bumper pull TT's accentuate any bouncing or hoping
3 I probably wasted a lot of your time with my rambling to get to this point, I'm sorry
4 Shocks on the TT or more weight up front are probably the only thing to slow down your bouncing.
5 if you add weight to the back of the van instead of the front of the trailer, you'll probably just get into your overload packs and the bouncing will be more harsh

my .02
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Old 07-23-2013, 04:21 PM   #20
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Quote:
Originally Posted by strokendiesel002 View Post

I highly doubt you're anywhere needing air bags as an assist... when you say it bounces... do you mean like a Caddy floating down the road, or like a box truck with the tires "hopping"

My 1ton DRW pickup "hops" down the road empty and with my light trailers on the back. Dropping tire pressure to 65 front and rear has helped greatly with lighter loads.
The best I can say is it feels just the back end is floating up and down over road imperfections and the front end crashes over the same bumps. I will admit this is my first full size van and some of the sensations could be from sitting so close to the front suspension and so far from the rear. I drive a one ton pickup Chevy pickup at work and it rides like a Cadillac compared to this thing. Of course it is always at its GVWR as well.
Most of this all stemmed from our recent trip through Virginia on U.S. 23, which is full of ups and downs and dips. Most roads are not a problem but I want to get this thing handling better before I have to perform some emergency maneuvers to avoid something.
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