Thanks for the responses. The one think I have not done it weight the coach. It's a 2003. The one thing I have done is heed the advice of other 29B owners. Load heavy stuff in between the axles, (long rear over hange and rear slide on this coach). Fresh Water tank is in between axles, and many recommend traveling with this full. As well. I have no uneven tire wire on the front at all, but maybe getting it in for an alignment would be a good thing.
I run the tires at the placard in the door and what other 29B owners do. 80 psi for the rears and 65 psi for the fronts. Rear air bags are set between 75 and 80 psi.
The coach has 36,000 miles on it, I have thoroughly checked over the front and rear suspension for worn and loose parts. All are good and tight.
Tires are new Coopers. Brakes are new, front wheel bearings packed. I also just installed new Monroe Gas Magnum RV shocks....No more pounding from the rear.
The behavior I am seeing is almost like j-d mentioned, the back gets an input up or down on own side and causes front to steer right and left. I have seen other have put Coil-rites in the front end with very good results. This looked like an alternative to the coil-rites which I am also considering.
On other thing to note. I do flat tow a 2001 4 door 4x4 S-10 blazer behind it. This has no impact on the handling nor the ride. This is what leads me to believe that an increase in front spring rate will help with what I am seeing.