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Old 06-06-2014, 07:05 PM   #21
Montana Master
Join Date: Oct 2012
Location: Chilliwack
Posts: 1,520
M.O.C. #12935
We have the MOR/Ryde suspension system on our 2012 - 3402RL, and have never broken so much as a glass and have been over some horrendous roads, the concrete sections of some highways seem to be the same distance between joints and create a kind of harmonic bouncing, although that is uncomfortable it really does not appear to put a lot of up and down movement on the front and back of the trailer.

The sections of highways that have sharp dips and rises are the killer. As the truck enters the dip the springs compress and the front of the trailer goes down, and the rear goes upward, when you come out of the dip the truck springs unload and there is an upward movement of the front of the trailer, if the dip is significant enough you will have "no" pin weight and in fact the pin box will try to lift off the hitch. This then creates a downward movement on the rear of the trailer, it is the combination of these two actions that cause significant strain on the pin and it's mounting points and flexing of that part of the frame. All of this is exaggerated with a SWB truck as well.

There is one section of road north of El Centro, California that is just plain ugly and will put more stress on the entire RV than hundreds of miles on roads without dips even if they do have pot holes. I have proof of this recorded on my HERO3 camera mounted on the pin box of the Monty.

While there is an improvement in ride with IS suspension it does not eliminate the effects of going into and out of these dips. I do not think the improvement under most conditions warrants the cost, but that is just my opinion.

IS suspension is used almost exclusively in high end horse trailers providing a smoother ride for the horses, however I have seen the same effect on roads with dips as you experience in a sprung suspension like MOR/Ryde uses.

The only way to minimize the effect of these kinds of roads is to slow down, I have learned that lesson.

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Old 06-06-2014, 08:53 PM   #22
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Join Date: Jan 2013
Location: Bridgewater
Posts: 1,196
M.O.C. #13166
The affects of dips in the road resulted in "pogo-ing" on my hook-up, meaning it would take several up and down movements of my shocks to settle down again. Changing out the o.e.m. shocks for Bilsteins all but eliminated this. I thought that may be what the OP was referring to, which is why I suggested Bilstein. He has a new Montana and the Mor/ryde suspension already. Steelpony has a RK model. Maybe a rear kitchen model is more sensitive to bouncing in the trailer.

2010 Montana 3455SA, Mor/Ryde pin, wet bolts, TST 507, Progressive HW50C, GY G614
2019 Silverado D/A 3500HD LTZ DRW CC
B&W Companion
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Old 06-06-2014, 11:58 PM   #23
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Posts: 608
M.O.C. #12894
If you have 40k on the tv, it would be time to replace the shocks any way. Plus it would be the least expensive route compared to the other suggestions.

Heck, I changed mine at only 5k miles and saw a big difference, so my factory shocks weren't worn out yet. Compared to your 40k ones.
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Old 06-07-2014, 06:22 PM   #24
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Join Date: Jan 2012
Location: Copperas Cove
Posts: 1,426
M.O.C. #12096
True, if you got a rear kitchen you definitely don't want your trailer doing a whole lot of lol We ran some really rough road today in Ohio and Pa, jarred the trailer bad enough to lose 2 hub caps and the shutoff valve on the end of my sewer line... But my frig was still fine and so were our dishes and cabinets.
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