Forum Discussion

maxum1989's avatar
maxum1989
Explorer II
Jun 30, 2015

Mor ryde li box issue

I treated myself to a mor rude pinbox for my fifth wheel. Trying to reduce the chucking. Didn't turn out so well. Here is the issue. First trip with the mor ryde it does reduce the normal chucking but on serious bumps on the road the hitch bounces vertically right off the hitch in the truck. The trailer is hitched properly and my last stock non rubberized hitch didn't do this. Looking carefully when hitched there is about a 3/4" space underneath the jaws of the hitch that I guess is the amount it's bouncing off the hitch in the truck. From the drivers seat it looks really bad. Almost like it's going to fly totally off. Any ideas of the what can be done? My hitch is a Reese signature series and there is a Teflon lube plate on the mor rude.

My first guess is that the rubberized portion that is helping with the chucking is contributing with this problem by launching the trailer up after obsorbing the bumps is the road. Possible?

Anyways is there a way to fill in this space on the bottom of the pin underneath the jaws of the hitch?
  • Cummins12V98's avatar
    Cummins12V98
    Explorer III
    Jun 30, 2015
    maxum1989 wrote:
    I treated myself to a mor rude pinbox for my fifth wheel. Trying to reduce the chucking. Didn't turn out so well. Here is the issue. First trip with the mor ryde it does reduce the normal chucking but on serious bumps on the road the hitch bounces vertically right off the hitch in the truck. The trailer is hitched properly and my last stock non rubberized hitch didn't do this. Looking carefully when hitched there is about a 3/4" space underneath the jaws of the hitch that I guess is the amount it's bouncing off the hitch in the truck. From the drivers seat it looks really bad. Almost like it's going to fly totally off. Any ideas of the what can be done? My hitch is a Reese signature series and there is a Teflon lube plate on the mor rude.

    My first guess is that the rubberized portion that is helping with the chucking is contributing with this problem by launching the trailer up after obsorbing the bumps is the road. Possible?

    Anyways is there a way to fill in this space on the bottom of the pin underneath the jaws of the hitch?


    " Anyways is there a way to fill in this space on the bottom of the pin underneath the jaws of the hitch"

    Get one of these. With the 1" thick jaws there is no vertical movement. B&W

  • rhagfo's avatar
    rhagfo
    Explorer III
    Jun 30, 2015
    filrupmark wrote:
    I just completed our smooth out the ride project. We installed a Trailair tri glide pinbox. That helped the chucking by about 75 percent. Bridge transitions and large humps were still to bouncy .
    Next I installed Monroe gas magnums on the trailer. Things got even better as far as chucking and bridge transition bounce but still was not completely satisfied with bridge transitions and chopped up freeways.
    We had Monroe Reflex gas shocks on our truck. I replaced the shocks with Bilstein 4600 monotube shocks front and rear . WOW were we impressed. No more bouncing on and off the bridges. With all of the modifications we now have a very comfortable ride. The best we have had out 6 trailers in 25 years. I think the Bilstein monotube shocks will control the bouncing issue that you have causing your pinbox to bounce off the hitch.
    This was a long and expensive project for us but well worth every penny spent. My wife and I are very happy with the outcome. Good luck with your ride.


    Well in my way of thinking you got to the Root Cause in the reverse order.

    The Trail Air would be the last item I would have installed. Very expensive and while it will help the real problem still exist.

    I also did the shock emplacement in reverse order of you Bil's on the TV first, big difference, but could see the 5er bounce on the springs a bunch more than the TV. Installed the Lippert shock kits on the fiver. The next week went down an old concrete road with pronounced expansion joints, the ride was great!

    The current ride is very smooth, I have a correct tract to install to level the 5er the last 2" and I hope to be like velvet. :)
  • filrupmark's avatar
    filrupmark
    Explorer
    Jun 30, 2015
    I just completed our smooth out the ride project. We installed a Trailair tri glide pinbox. That helped the chucking by about 75 percent. Bridge transitions and large humps were still to bouncy .
    Next I installed Monroe gas magnums on the trailer. Things got even better as far as chucking and bridge transition bounce but still was not completely satisfied with bridge transitions and chopped up freeways.
    We had Monroe Reflex gas shocks on our truck. I replaced the shocks with Bilstein 4600 monotube shocks front and rear . WOW were we impressed. No more bouncing on and off the bridges. With all of the modifications we now have a very comfortable ride. The best we have had out 6 trailers in 25 years. I think the Bilstein monotube shocks will control the bouncing issue that you have causing your pinbox to bounce off the hitch.
    This was a long and expensive project for us but well worth every penny spent. My wife and I are very happy with the outcome. Good luck with your ride.
  • golf_bears's avatar
    golf_bears
    Explorer
    Jun 30, 2015
    I would consider adding additional Teflon plates to fill the gap between the hitch jaws and the pin. There about 1/4" thick, three more should close the gap for you.
  • maxum1989's avatar
    maxum1989
    Explorer II
    Jun 30, 2015
    I agree my pin weight is on the lower end of the scale. It is within the 15 to 25 percent goal. It's right at 15.5 percent. I've weighed it. My last hitch didn't do this jumping so I guess the mor ryde is causing this. I am definitely not going too fast and I have already moved everything as far forward as I can. I guess I will just travel slow to return home (about 4 hours away) and take the mor ryde off and go back to my old pin box. Obviously mor ryde needs a heavier pin weight percentage to operate properly. Lesson learned.
  • goducks10's avatar
    goducks10
    Explorer
    Jun 30, 2015
    I have a MorRyde on my 5th also. Same gap at the bottom of the pin as you mentioned. I have about 19-20% for pin weight. Never had any of the issues you're talking about. I'm joining the "Too Light Of A Pin" crowd on this. Load it up and get it weighed.
  • RollandB's avatar
    RollandB
    Explorer
    Jun 30, 2015
    Good info from Ragflo. I've ad a MorRyde on for the past year and have not had any problems similar and have hit some good bumps. I'd check the pin weight as suggested.
  • rhagfo's avatar
    rhagfo
    Explorer III
    Jun 30, 2015
    maxum1989 wrote:
    I treated myself to a mor rude pinbox for my fifth wheel. Trying to reduce the chucking. Didn't turn out so well. Here is the issue. First trip with the mor ryde it does reduce the normal chucking but on serious bumps on the road the hitch bounces vertically right off the hitch in the truck. The trailer is hitched properly and my last stock non rubberized hitch didn't do this. Looking carefully when hitched there is about a 3/4" space underneath the jaws of the hitch that I guess is the amount it's bouncing off the hitch in the truck. From the drivers seat it looks really bad. Almost like it's going to fly totally off. Any ideas of the what can be done? My hitch is a Reese signature series and there is a Teflon lube plate on the mor rude.

    My first guess is that the rubberized portion that is helping with the chucking is contributing with this problem by launching the trailer up after obsorbing the bumps is the road. Possible?

    Anyways is there a way to fill in this space on the bottom of the pin underneath the jaws of the hitch?


    Sounds like you have WAY tool light of pin weight, or you are driving way to fast on rough roads!

    I would assume option #1 :)

    Your fiver should have at MINIMUM 15% of total weight on the pin.

    it looks like dry your Wildcat weighs 7,160# X .15 = 1,074# is what your pin should have on it.
    If you add 1,000# of stuff, then at least 150# of that needs to ba added to the pin. Far better than 15% with a 2500 and that light of 5er, I would be looking at 20%+ pin weight.

    Towing nose high will also cause chucking, if with a 2500 you are getting a lot of bounce, look at new shocks.

    The Mor/Ryde pin boxes will reduce the effects of chucking, but best to work on the root cause before gong with a Mor/Ryde, then you will get the best benefit from it.

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