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Old 06-10-2010, 09:51 PM   #1
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Disappointed with Super Steer MCI

I recently ordered MCI units from Henderson's in Oregon. I ordered them because of the good comments I read on this forum about what a difference it made in the way their coach performed. I talked to the parts guy at Henderson's and he asked me if my coach was over 30,000#. I told him it was 24-25,000#. He said he would send me the 6565 for the front air bags and 6575 for the rear. They arrived and I easily installed them. I am on a trip to South Dakota and I can tell you that my 36' Winnebago Journey on Freightliner chassis now rides like a log wagon. It bounces up and down like an over inflated basketball. While it may have helped on the side to side rocking motion, I am paying for it in comfort. I guess I should have gone with a sway bar. Has anyone else had this bad experience? I am tempted to take these devices off, but they did cost a lot of money. Any advice on what might help would be appreciated. My air pressure is around 110#. Is there an adjustment on this?
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Old 06-10-2010, 10:16 PM   #2
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Not knowing what year your coach is or how many miles are on it, my best guess would be that your shock absorbers are bad. I have the MCU's on my 2006 Journey and they are one of the best improvements Iv'e made. I also got rid of the stock shocks and installed Koni's. Now my coach rides smooth as silk. Your air bag pressure is not adjustable but you can also gain a better ride by getting a four corner weight and adjust the tire pressure according to that weight rating.

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Old 06-11-2010, 10:44 AM   #3
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Thanks Sammie,

My coach is a 2001 Journey DL 36'. It has 55,000 miles on it. I bought it used and it had 39,000 on it. It has never steered well even though it has the Howard Steering System on it. I noticed a big difference in the ride after installing the MCI. It is a very bumpy, bouncy ride. Maybe it does need new shock absorbers. I know that everyone raves about the MCI, but mine just didn't seem to make much difference other than a little better on rocking motion.
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Old 06-11-2010, 08:59 PM   #4
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Quote:
Originally Posted by Nancylatic View Post
Since you are in the neighborhood, stop into Precision Frame & Alignment in Elk River, MN. Like Sammie says, your shocks may be in need of replacement.

RV suspension and tires are our specialty

At the very least, go to them and get your coach weighed and the tire pressure set, and the rig greased. Get things put back to a baseline and then start adding things to it.

Precision is the best in the business AFAIK at fixing these driveability problems. Throwing parts at the problem is not the way to solve it.

Very good idea to get a baseline to start with. A front end alignment and weighing the coach is a great place to start.

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Old 06-12-2010, 10:55 AM   #5
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Hi embmac,
I also have the MCUs and the HPSS. Like others, after installing the MCUs the handling of my coach was vastly improved. I noticed no difference in ride comfort. I also have the large Roadmaster anti-sway bar and a trac bar on the rear suspension.

It sounds like your on a path to get what is needed. Please continue to post. We can learn from what you learn.
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Old 06-12-2010, 11:09 AM   #6
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Have you always run 110 psi in your tires? That sounds high especially for the rears. If you are overinflated it sure could cause the ride problems you are experiencing.
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Old 06-12-2010, 11:41 AM   #7
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I too am a VERY satisfied customer of Precision Frame. They have a fully equipped shop with the friendliest and best trained people in the field we've ever met. They didn't just tune up our chasis, Dick explained every step they did. I don't think he can help the educating as he gives Chassis and Tire seminars all over the country. There is a reason you are having problems and adding parts may not only NOT work, it can often make the problems worse!
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Old 06-12-2010, 11:05 PM   #8
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Gman,

The 110# is the air pressure going to the air bags. My tires are new Michelin XZA2 Energy. I have 90# in all 6 tires. The tires are 275/70/22.5 and are J rated. I really do need to get the coach weighed per axle. It could be that I dont even need 90# in tires with this J load rating.

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Old 06-13-2010, 02:12 PM   #9
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Hi embmac,
I have the same tires as you. The J rating can carry a lot of weight. I am at my rear GAWR (20K lbs) and run 90 PSI in the rear tires. The front tires call for 100 PSI as I am running a little over 11K lbs on the front axle. I am balanced within 100 lbs left and right on both axles.

All this means your rear tires are about right for a 20K lb weight. A 20K lb axle is all I have ever seen on the rear of any coach. The front tires may be a bit light, depending on the weight you are carrying.
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Old 09-15-2010, 04:27 PM   #10
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Hi All! I just had Super Steer MCUs installed along with new shocks(Bilsteins) and new radial Michelons on my 2000 Fleetwood Discovery w/25k for mileage. This is my first MH after several TTs and I am still learning. I also added a Safe-T steering stabilizer and I can tell you that the rig handles like my Volvo and is very comfortable. The previous owner had three tires on the rig that were born in 1999 and apparently were original equipment. I would recommend not sparing a dollar to have the piece of mind to know what your driving on and I think you to will also be satisfied with Super Steer's products. Take care and drive safe...
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Old 09-15-2010, 08:02 PM   #11
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Shock absorbers really don't do much for ride comfort - they are intended to control suspension bounce and keep the wheels in contact with the road.
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Old 09-15-2010, 08:18 PM   #12
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Replaced the stock Bilstein shocks on my '98 Safari Serengeti with Koni shocks. The change made quite an improvement in the ride quality. Prior to replacing the shocks the ride was somewhat harsh when hitting bumps, but after replacing the shocks, the ride is much smoother when encountering bumps and rough spots in the road. Even the DW noticed the difference and asked what changes I had made to make the ride smoother!
I was plesantly surprised in the difference the shocks made.
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Old 09-16-2010, 12:44 AM   #13
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Quote:
Originally Posted by Gary RVRoamer View Post
Shock absorbers really don't do much for ride comfort - they are intended to control suspension bounce and keep the wheels in contact with the road.
Gary, I would say that controlling suspension bounce is a component of ride comfort. Decent shocks are part of the suspension package and do help the coach's ride.
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Old 09-16-2010, 06:06 AM   #14
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Quote:
Originally Posted by Easyrider-6 View Post
Gary, I would say that controlling suspension bounce is a component of ride comfort. Decent shocks are part of the suspension package and do help the coach's ride.
EZ6
I agree.

Changing from Bilstein's to Koni's resulted in a remarkable improvement in ride comfort by eliminating the harshness of the Bilstein's for the softer Koni's.
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