Momentum 398M Suspension Failure

[Dive Bar Casanova]

We headed out for a two week vacation and an hour from home felt a bang, then the dash alarm came on trailer brake failure.
The new 4000 lb suspension is failing took the brake wiring with it
Can anyone recommend a good suspension for the 398m?
The dealer service dept was supposed to upgrade but put the 4000 on instead.
Thank you for any help.

Blown thru:

[howson]

We headed out for a two week vacation and an hour from home felt a bang, then the dash alarm came on trailer brake failure.
The new 4000 lb suspension is failing took the brake wiring with it
Can anyone recommend a good suspension for the 398m?
The dealer service dept was supposed to upgrade but put the 4000 on instead.
Thank you for any help.

Blown thru:

Sorry to read of your troubles.

It's not cheap -- and getting the installation done right can be a challenge -- but nonetheless I'm a fan of the MORRyde IS system. If you haven't read my (lengthy --sorry!) thread, it's here: https://gdrvowners.com/forum/operati...ts-post-1-of-3

Howard

P.S. If you attempted to post pics they are not showing? I'd like to see exactly what failed on your current setup.

[Dive Bar Casanova]

Thanks for your help:
Starting to blow thru:


Blown thru:

[Country Campers]

I would make the dealer come out to you and install the correct equalizer, their mistake their fix.

I am not a fan of the Morryde equalizer products. I think the Dexter EZ Flex is better, not sure it can handle the weight though. The Lippert Center Point is an air bag equalizer and it works on our unit very well, works with the big rigs as well.

Brian

[Scott'n'Wendy]

I always thought to myself the Mor-Ryde 4000 looked like a really poor design..Doesn't appear to have a safety if the rubber shears..

I agree with Brian, look into EZ-flex or other non mor-ryde equalizer

[Dive Bar Casanova]

Thank you.

Dealer is ignoring us.

[ncitro]

Dive Bar Casanova This does not help your issue at all, but just FYI the SRE4000 is not 4000 pound rated, its got 4" of travel. Thats opposed to the CRE3000 which has 3" of travel and was probably stock on your trailer. The 4000 is rated for up to 7000 pound axles. I used to run the 4000 and was very happy with it, until I got a screaming deal on the center point air system Brian referenced, which I have also been very happy with. I think we moved my 4000 to WondersAwait and he is still using it, with no issue. Both of our trailers are quite a bit lighter than your Momentum, so that might be the difference, but wanted to give you another data point.

If you are looking for another solution the Center Point has been great, and I know the SRT team runs it on their service trailers which I believe are significantly heavier than our RVs. If it holds up to the miles they put on and the weight they carry then thats a huge vote of confidence for me.

[Scott'n'Wendy]

Thank you.

Dealer is ignoring us.

I really don't understand the customer service philosophy that so many dealers seem to have.
I feel for you Dive Bar, I remember you had a tough time in Quartzsite with hydraulics last year. Hope you get some trouble free miles in soon.

[Cate&Rob]

I would doubt that trailer weight is the cause of your new equalizer failure (unless you hit some really rough roads). Look for other causes before you replace just the equalizer(s). I am not endorsing MorRyde suspension(s) but even their product should do better than shown in your pictures if properly installed and if there are no other mis-assembled or damaged suspension components. Similar to earlier comments, I have had good experience with the Lippert CenterPoint airbag equalizer . . . albeit, on a considerably smaller 5th wheel.

Rob

[Dive Bar Casanova]

No fail safe feature no catch a failure . If the cushion separates it collapses.

[Country Campers]

Yep, and that is one of the reasons why I do not like those equalizers.

Brian

[Dive Bar Casanova]

Simi Valley Ca to Ridgecrest and back all normal paved roads 280 miles total use. They simply either failed or are failing.

The mfg has stated they have discontinued them.

Neighbor on the next block experienced the same with his 398m.

[Yoda]

Here is some information on the Dexter EZ-Flex. Looks like it is rated up to 8K axles. https://www.dexteraxle.com/Dexter-E-Z-Flex Dexter says up to 3 axles Dexter instruction sheet indicates which kit you need https://www.dexteraxle.com/user_area...ctionSheet.pdf

[acoleman43]

Wow, a bunch of Morryde haters

I have the CRE3000's. We have around 10,000 miles on them without any issues. I was considering the SRE4000's but went with the 3000's based on cost. Looks like my cheap side made a good decision.

[Jlawles2]

Looking at the failure and having very little elastomer design, it almost appears there is either a bad batch of rubber or there is too much between the parts.

Going forward, The traditional triangular equalizer is not an equalizer, it becomes biased as one end of the triangle rises and the other lowers changing the distance from the pivot as one increase and one decreases. The shorter distance will always carry more load. But that's a completely different subject.

I did a quick look and ran across these: https://www.easternmarine.com/ufp-le...lizer-bar-eqr2 now this is a true equalizer that will keep the loading the same as one or the other end rotates. Why do they not use this system? My best guess is clearance. you have the swing shackle length to deal with above the equalizer meaning the hanger needs to get longer.

Also ran across this design https://www.etrailer.com/Trailer-Lea...e/TREQ105.html which again is more a a true equalizer, but eliminating the swing shackle on the equalizer means one side changes differently that the other. Also note the pivot bolt is not on the same center line as the spring bolts.