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Old 03-20-2009, 06:46 AM   #15
Join Date: Aug 2008
Location: Brookings, Oregon
Posts: 32
We tow a 33' fiver with a Ford F550. The trailer rides smoothly enough that even on rough county roads we rarely had problems with anything in the trailer bouncing or shaking loose. In fact we have accidentally left stuff on counters, and it stayed put.

But, we did everything we could to smooth the ride.

The truck has a Kelderman Air Ride suspension, and a Trailer Saver hitch.

The fiver has a MorRyd suspension.

As for frame damage: the frame on our New Horizons fiver is one of the heaviest in the industry. I doubt that the frame could be harmed by anything but insane towing even without the Kelderman, Trailer Saver, and MorRyd. Of course a heavy frame has its downside: it is heavy!

The big downside to having a heavier duty truck than necessary is extra fuel consumption to no benefit.

For safety and economy it seems best to have a truck matched to your trailer. Safety was a big concern for us: the truck should have a gross combined vehicle weight rating high enough to handle your rig (including truck) when it is full loaded/fueled and ready to roll.

Tom Donaldson
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Old 06-14-2009, 07:29 PM   #16
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Join Date: Dec 2000
Posts: 29
Talking Heavy tow truck

I tow a 35' fifthwheel-skyline-with have an ex school bus and like has been stated the susp. Is just to stiff for the fifth so i went to an air ride hitch and and it helped it out a great deal! Well worth the money spent on it!
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Old 06-14-2009, 08:08 PM   #17
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Posts: 91
I think there is a significant difference between 5er towing and TT towing. We're comparing 5er hitches to his particular application (TT). Not sure we're doing apples to apples. Weight distributions are different. 5er's put much more weight on the rear suspension of the truck, thereby smoothing out the bumps.

That said, I believe you have a rare problem. A sub-par trailer with a bouncy TV. Would the damage have showed up with a less-bouncy truck? Perhaps not. Should the frame be able to withstand towing by a large MDT? Absolutely.

While your TV may have exacerbated the failure of the trailer frame, the frame must have already been too weak or otherwise compromised. I wonder if the frame didn't suffer some damage when it was originally towed to the dealer lot.

Good luck, hopefully your problems are done with!
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Old 06-14-2009, 09:44 PM   #18
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Location: Kingston, Wa. USA
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This is a little late but it looks to me like you couldn't be riding very hard with a 1T PU with 5K load in it. Even with a 5500 that much weight will soften it a lot. That would make mine over loaded and ride like a feather bed. My next question 6k for a 17.5 TT sounds like a lot.

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Old 06-25-2009, 01:49 PM   #19
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As others have mentioned, the big issue is the suspension of the truck (along with the weight). That is why a lot of us towing with HDTs use an air hitch like the Trailer Saver Trailer Hitches – Air Ride Trailer Hitch & Fifth Wheel Hitch

A HDT with the commercial hitch will work fine, but it can really beat up the fiver.

Nancy & Dennis
2005 Mountain Aire FW 35BLKS; '99 Volvo 610
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