az99
N.Y.
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Joined: 12/26/2006
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dcowley- Could you please give some more detailed info about the Reflex steering stabilizer please ? Like what did you feel it improved, price, installation etc. Most of the other devices you have installed have been pretty well discussed before but I have never seen mention to that particular brand or style of steering stabilizer.
Thanx
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ASA Glamis
Rancho Cucamonga, CA
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Joined: 03/19/2007
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I have only the trac bar, front anti-sway, Koni shocks, safe-t-plus and the super springs.
I elected to install the super springs because, at the time, Jayco was not retrofitting with the 19K springs. I think that the 19K springs AND the super springs could be a little overkill. The super springs raised up the back a couple of inches and now the MH sits perfectly level when loaded.
As the rear weighs 14,700 lbs, to have the rear sprung at 25K seems a bit stiff. If the 19K springs and the 6K super springs are both installed this would seem to make the rear very stiff. The rear axle is only rated for 15K lbs.
With my additions I have no problems with wind and/or trucks passing me. If fact if I don’t pay attention to the mirrors I don’t even know a truck is passing until I see them go by. Does not drive quite as good as my suburban, but not a lot different.
I have driven in 40-50 mph winds in the California desert and felt very comfortable.
While these additions are not inexpensive, I feel they are worth the investment to make the MH much more stable and easy to drive.
2007 Jayco Seneca 35GS
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dcowley
Texas Panhandle
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Joined: 09/11/2007
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ASA Glamis wrote:
If the 19K springs and the 6K super springs are both installed this would seem to make the rear very stiff.
Glamis,
The opposite appears to have happened the RV (according to the rear riding passengers) is actually smoother now than it was before.
Maybe at times the fully loaded RV was bottoming out and now it strictly floats on the springs... or maybe the way the SUPERSPRING couples with the 19k spring makes for a smoother ride. I really don't know but I know I have been told everything is so much smoother in the back going down the road.
I can only go by what my passengers have told me.
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katvans
Cave Creek, AZ
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Joined: 08/29/2005
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dcowley wrote:
The trac-bar connects the rear axle to the frame or the front axle to the frame. It takes out the side to side motion. The only thing keeping the side to side motion at bay are the spring shackles and as those wear tail wag with get worse, especially on these class c's with a long overhang off the rear axle.
The sway bars keep the slosh or rocking motion to a minimum
Click for pictures
I looked at the picture for the rear anti-sway bar and it looks like an easy bolt on. Is this what you have? Did you install yourself and was it as simple as it looks??
Thank you
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8KCAB
Louisville
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Joined: 08/18/2008
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Seneca 35GS (2006 chassis,2007 Seneca model year)
How do you determine if you have the wrong rear leaf springs or not other than poor handling. My dealer is resisting me on this and before I go directly to Jayco I want to know what I am looking at under the motorhome. Also, is GM footing the bill for the heavy(19K) springs or is Jayco?
Can you guys give me an idea of how many of you had the springs replaced and By whom-GM or Jayco.
Thanks
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ASA Glamis
Rancho Cucamonga, CA
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Joined: 03/19/2007
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I have added the Super Springs to my ’07 Seneca to raise the ride height. I don’t believe that just the springs will help the handling. In fact I think having heavier springs without the rear track bar could make the handling worse.
This is because the heavier springs will raise the coach up from the frame a couple of inches and this may allow more sway from the coach body being able to move independently from the chassis.
The idea of the rear track bar is to couple the coach more closely with the chassis.
Again the spring replacement or addition as is the case with the super springs is to raise the ride height.
I’m under the impression that Jayco is or was paying for the spring replacement. GM installed the springs that were ordered by Jayco so GM should have no obligation to replace them.
Also remember that you still have a 15K rated rear end so you are not gaining any increased load carrying capacity with the heavier springs only a little increase in ride height.
If you replace only the springs it would be interesting to hear your comments on any handling changes with only the spring replacement.
I have a front sway bar, rear track bar, Koni FSD shocks, and Safe-T-Plus steering dampener. My motorhome drives almost as good as my suburban and almost get the same mileage. MH gest 11MPG and the suburban gets 15 MPG.
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8KCAB
Louisville
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Joined: 08/18/2008
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Thanks for the response! I believe if the springs were not delivered to the dealer as specified then they should be replaced - period. I am using this as my begining point to fix the handling issues. After the springs have been addressed then i will go from there to fix the rest or I am considering selling the unit.
My question is does anyone know how to determine by visual inspection what the 15k springs look like as opposed to the 19k springs?
How many leaf springs are in each set? Two in the light set, perhaps 3 in the heavier set? Three vs. 4? Does anyone have a picture of the 2 versions?
Thanks in advance
Kevin
If someone would prefer email mine is kmacfly@hughes.net
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paulin
No. CA
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Joined: 08/28/2003
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8KCAB,
Look behind the driver's sun visor in the cab and you will find the RPO codes specific to your rig. If you find one with GQO you have the 15K rear springs. If you find GN2 you have the 19K springs according to GM's 2007 Online Order/Reference Guide.
I agree with everything that ASA Glamis said in his post, except, I've added all those upgrades plus a front trac bar and my Seneca still doesn't handle quite right. I've heard a lot of good comments about adding a rear sway bar in addition to the stock one and that is what I'm considering next.
Paul
Paul & Linda
2007 Jayco Seneca HD 34SS Duramax
2005 Saturn VUE
"Monty", "Maggie" & "Murphy" the mighty Shih Tzus
FMCA #F375077
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az99
N.Y.
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Joined: 12/26/2006
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ASA Glamis wrote: I don’t believe that just the springs will help the handling. In fact I think having heavier springs without the rear track bar could make the handling worse.
That is not true. With the proper rear springs the coach will not roll over from side to side. A properly sprung vehicle should not need a rear trac bar. That is just a bolt on band aid.
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JohnInAz
Arizona
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Joined: 03/20/2007
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I must have got lucky. After getting the rear spring upgrade, koni's all around, and a front and rear alignment, mine handles fine. It wasn't too bad before unless you got into heavy cross winds or traveled over uneven surfaces (then the box rocked like mad).
2007 Jayco Seneca 34SS
2006 Jeep Grand Cherokee toad
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