New pin box...

[mach8274]

Toying around with the idea of getting a new pin box for our 5er. It tows really well now but I do get some chucking on concrete interstates. Just looking to improve the ride a little. I am torn between the Trail-Air Rota-flex and the Mor-ryde. Which do you have and why do you like it??

[N-Trouble]

RustyJC wrote:
Any vertical attenuation the MorRyde pinbox might offer is minimal at best, and my experience was that it was inferior to the Demco Glide Ride in horizontal attenuation.

Rusty

MorRyde doesn't offer ANY vertical (Z-axis) attenuation. Everything is in the X-Y(horizontal).

Was your comparison of the Demco to MorRyde on the SAME trailer (apples-to-apples)?

[RCMAN46]

mach8274 wrote:

RCMAN46 wrote:
I would check the basics first.

Most important is the pin weight percentage.

Have you been to the scales a determine your pin weight percentage and if you have what was it?

Haven't scaled it yet. My intention is to do so in the coming weeks. Like I said, it tows really well. There is really nothing that is telling me that I'm too light on the pin(or heavy). I'm just looking to make some improvements. The only time I get some chucking is on concrete roads with expansion joints in them.

Two things that I have found that can cause chucking even when the trailer tows well.

1st and most common low pin weight percentage.

2nd nose high trailers.

Suggest these be checked and corrected if needed before spending big bucks on a pin box only to find out it will only help but not eliminate the problem.

Too heavy on pin weight will not cause chucking or towing problems. The only reason to reduce pin weight is if the TV does not have enough capacity then you probably should be looking at a higher rated TV. The over the road guys often run pin weight percentages in the 30-40% range.

[RustyJC]

Learjet wrote:

RustyJC wrote:
Any vertical attenuation the MorRyde pinbox might offer is minimal at best, and my experience was that it was inferior to the Demco Glide Ride in horizontal attenuation.

Rusty

I don't think he meant vertical, rather fore and aft and side to side.

Perhaps so, but the Y axis on most graphs I see is vertical. The X and Z axes are in the horizontal plane.

Rusty

[Learjet]

RustyJC wrote:
Any vertical attenuation the MorRyde pinbox might offer is minimal at best, and my experience was that it was inferior to the Demco Glide Ride in horizontal attenuation.

Rusty

I don't think he meant vertical, rather fore and aft and side to side.

[RustyJC]

Any vertical attenuation the MorRyde pinbox might offer is minimal at best, and my experience was that it was inferior to the Demco Glide Ride in horizontal attenuation.

Rusty

[laknox]

Not having any, but contemplating a "flex" pin box for my next FW, I do like the Mor-Ryde in that it has both X & Y shock absorption, while the Demco is only in the X (fore/aft) plane. Would love to see results from a test truck running the same route with each one installed.

Lyle

[FlatBroke]

I have the TrailAir and Rancho 9000 on my truck. Found that using a softer setting on the shocks and a smiggen less air in the pin box I get the best ride we ever had. They kinda balance each other.

[Second_Chance]

RustyJC wrote:
For non-air pinboxes (our current MS has a TrailAir TriGlide), I've towed with both the MorRyde and the Demco Glide Ride pinboxes in the past, and between the two, my experience with the Demco's effectiveness in mitigating surging and chucking is markedly superior. The Demco Glide Ride was standard equipment on NuWa's HitchHiker 5th wheels.

Rusty

The Demco Glide Ride was the recommendation of the service and parts manager at the dealership where we bought our Grand Design fifth wheel. He said it was the most effective and was compatible with my
Andersen hitch setup. I'm in the process of locating one while we're where my brother-in-law can help me switch out pin boxes.

Rob

[rhagfo]

mach8274 wrote:

RCMAN46 wrote:
I would check the basics first.

Most important is the pin weight percentage.

Have you been to the scales a determine your pin weight percentage and if you have what was it?

Haven't scaled it yet. My intention is to do so in the coming weeks. Like I said, it tows really well. There is really nothing that is telling me that I'm too light on the pin(or heavy). I'm just looking to make some improvements. The only time I get some chucking is on concrete roads with expansion joints in them.

Sounds like you are near the the point of a pin box.
I would assume Great shocks on the TV, good shocks on the 5er, all is level? Not scaled yet so that could be interesting, 20% pin is a good place to start, a little more will help, dry pin is only 16.25% of Dry weight. If you load in 1,500# of stuff, you need to get the pin to 3,000#.
I will buy the pin box as the last step to 100% smooth towing, and likely a Mor-Ryde, as it is simple.

[BB_TX]

I had very little chucking except, like you, on certain concrete highways. I put a 5th Airborne pin box on mine and it eliminated almost all chucking.

[greende]

I have a Mor Ryde. Got it because it was simple and very well priced. Works well.I would consider trail air as well, though.

[RustyJC]

For non-air pinboxes (our current MS has a TrailAir TriGlide), I've towed with both the MorRyde and the Demco Glide Ride pinboxes in the past, and between the two, my experience with the Demco's effectiveness in mitigating surging and chucking is markedly superior. The Demco Glide Ride was standard equipment on NuWa's HitchHiker 5th wheels.

Rusty

[SkiSmuggs]

MorRyde: simple and it does the job! Best towing upgrade for my rig.

[mach8274]

RCMAN46 wrote:
I would check the basics first.

Most important is the pin weight percentage.

Have you been to the scales a determine your pin weight percentage and if you have what was it?

Haven't scaled it yet. My intention is to do so in the coming weeks. Like I said, it tows really well. There is really nothing that is telling me that I'm too light on the pin(or heavy). I'm just looking to make some improvements. The only time I get some chucking is on concrete roads with expansion joints in them.

[RCMAN46]

I would check the basics first.

Most important is the pin weight percentage.

Have you been to the scales a determine your pin weight percentage and if you have what was it?