A/C Inspector
St. George Ut.
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Joined: 09/03/2002
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Anybody do this on your Super C ?
2006 Seneca 35GS.4"cat back.Edge/Attitude/GPS/Bilsteins/. Ford Ranger toad.
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ronfisherman
SE Michigan
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Joined: 06/05/2006
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I did. Removed the rear tire and wheels to get at the place where one hole needs to be drilled on each side. I also installed a gauge/switch on the dash. My MH has a air pump used for the Exhaust Brake and Air Horns.
If you belong to the Kodiak Chassis Forum you can see pictures of my install.
2004 Gulf Stream Endura 6340 D/A
TST tire pressure monitor system
Kodiak Chassis Class C Rally July 15th -18, 2010
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Ran
Wisconsin
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I just did this mod last week. Rather than go through all the work to drill holes in the frame rails, I simply tack-welded the upper flange to the rails. Four roughly 3/8" tacks on each bag. The bottom is strapped around the square axle housing. In this picture, the motorhome jacks are down. When I bring the weight down on the bags, they compress ALOT.
These are 5,000# Air Springs that were formerly under my Chevy 2500HD for a big fifth wheel we had. I talked to a lot of people before I did this and everyone felt they would do the job. With 90psi in them, it raises the coach about 2" at the axle. I took it for a drive afterwards and everything feels hunky dorry...
Randy & Sue
2006 Jayco Seneca 35 GS
All Lower 48 visited
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az99
N.Y.
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I put them on my 34SS. Easy install. Then I got the proper springs on the rear and the air bags were not needed. Took them off and sold them. Have you had your springs changed to the 19K springs ?
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Ran
Wisconsin
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az99,
How much did those 19k springs set you back?
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A/C Inspector
St. George Ut.
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az99:
I have not had the springs replaced. I am the second owner and I think that the warrenty will not work for me. My only concern with doing the bags is that the torque on the wheel nuts is so high that I don't have the tools to loosen them let alone retorque them. I have inquired with a couple of shops to have them installed and the labor rate almost gave me a coranary. I have had one and don't need another. I have in the past done all maintenance and mods myself and not being able to remove the wheels, a simple task, just plain ticks me off. The install is easy and would not take anytime at all if I am reading the instructions correctly. Pretty straight forward. Have you done this mod while on the leveling jacks or have you used a heavy set of stands? I am planning on a trip next week and sure would like to get them on before leaving.
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az99
N.Y.
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Ran wrote:az99,
How much did those 19k springs set you back? Jayco did it on warranty.
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az99
N.Y.
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A/C Inspector wrote:az99:
I have not had the springs replaced. I am the second owner and I think that the warrenty will not work for me. My only concern with doing the bags is that the torque on the wheel nuts is so high that I don't have the tools to loosen them let alone retorque them. I have inquired with a couple of shops to have them installed and the labor rate almost gave me a coranary. I have had one and don't need another. I have in the past done all maintenance and mods myself and not being able to remove the wheels, a simple task, just plain ticks me off. The install is easy and would not take anytime at all if I am reading the instructions correctly. Pretty straight forward. Have you done this mod while on the leveling jacks or have you used a heavy set of stands? I am planning on a trip next week and sure would like to get them on before leaving. Yes, I just did it on leveling jacks and did not go under.
I would recommend that you spend the money on the 19K springs and Koni shocks rather than put on the air bags. The air bags help some but do not solve the problem. Even if you do not T them together it does not solve the rollover problem. Air bags work great to lift and level the rear when loaded of a properly sprung vehicle (I have them on my pickup) but when all the weight of a motorhome tries to rollover, the bag opposite the side being compressed actually is helping the spring roll the weight to the compression side.The bags are only 5,000 lb.. I know the springs are more expensive than the air bags but the difference with the vehicle properly sprung is dramatic. You have to believe there is a very real spring issue when Jayco paid to have so many upgraded.
I live in a mountainous area. Every road is very curvy. With the stock springs and air bags the unit rolled over so much that it felt out of control even at slow speeds. On the same roads after the spring upgrade it drives like a SUV. Then I added the Koni shocks later and it was even better. Good Luck
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Ran
Wisconsin
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It would be interesting to price out the cost of having the 19K springs installed. I'm sure its not cheap. Even without the bags installed, I wouldn't say that my coach was sagging. In fact, it was slightly (very slightly) higher in the rear than front, but I like to get a little rise in the rear for steep ingress/egress situations.
I've driven mine only about 20 miles with the airbags installed (90psi), so I really haven't given it a fair chance to feel the 'roll' that az99 is referring to. During that particular short ride, however, it didn't feel any different than it did without the bags. I'm not in any way saying that what az99 said is inaccurate; just saying that I've not yet noticed any adverse handling conditions.
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az99
N.Y.
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Ran wrote:It would be interesting to price out the cost of having the 19K springs installed. I'm sure its not cheap. Even without the bags installed, I wouldn't say that my coach was sagging. In fact, it was slightly (very slightly) higher in the rear than front, but I like to get a little rise in the rear for steep ingress/egress situations.
I've driven mine only about 20 miles with the airbags installed (90psi), so I really haven't given it a fair chance to feel the 'roll' that az99 is referring to. During that particular short ride, however, it didn't feel any different than it did without the bags. I'm not in any way saying that what az99 said is inaccurate; just saying that I've not yet noticed any adverse handling conditions. You misunderstood what I said. I did not say that the air bags made the rollover any worse. I said they do not help the rollover problem of an undersprung motorhome.
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