2007 Seneca 35GS suspension problem ?

[dtmdogz]

2007 Seneca 35GS. The rear suspension hangers bolts are rubbing on the chassis. I've read many forums with complaints and issues regarding the suspension on this motorcoach. According to at least one post the springs were undersized from factory (15K) and that the owners made changes either through Jayco or GM. I called Jayco and asked about the problem and they did not volunteer a fix and or recognize a problem. I'm hoping someone on the forum's with knowledge on this issue will advise me on next steps. Some options I'm considering if I can't get the factory to advise include:

Perform surgery on bolts through hangers to resolve rubbing issue - not an easy fix - This would not resolve the sag
Air bags
Spring adjustment - I'm worried the ride will get worse. I want to avoid porpoise affect.
Other options ?

Thank you in advance to all Seneca owners with beneficial feedback.

[Grumpy]

Join this group and post the question there.

http://groups.yahoo.com/group/KodiakChassisClassC

[elder2]

I have an '06 GS35 and although it handled better then our Coachmen on a Ford E450 SD I felt it could be improved. I've added Steer-safe for the tracking, Bilstien gas shocks for the ride, and Roll Guard for lean and load control. It drives and handles like a car, albeit a large car. We went to Alaska, B.C., and the Yukon and I sure am glad I made these mods. Also, make a habit to travel with empty blk & gray tanks. I keep the fresh @ 1/3 because it seems to settle the ride and keeps the coach from being top heavy. I also like to have some fresh water availabe. FYI the Roll Guards add 1500 lbs capacity on each end according to the company.