Thank you for all the responses.
Wolfe10, History on the MH, 28,000 miles when I bought it, noise developed at 30,000. It has about 31,000 now. I'm not sure what kind of beating it took from the first owner, but he was a full-timer during the winter months. He drove it annually from Massachusetts to south Florida, so I would imagine it's had life pretty good.
V10guy, I'm with you. I was told that the weight of the coach just wears out the springs over time. This is not a phenomenon I am familiar with. My experience is that when springs wear out, they become extremely rigid, then break.
The shop clearly has no profit motive for recommending leaf springs, since they recommended I source them myself. When I arrived to pick up the motorhome they sheepishly handed me a no-charge invoice and apologized for not fixing it. They threw in the steering link, which was clearly worn, for my trouble.
That kind of service makes me want to stick with them, but I think this is a little over their heads.
As far as the popping and sway bar issues, that's a different animal. The noise I'm experiencing is most apparent when hitting small bumps, or dips in the road. It makes the noise going straight at 65mph, or in a parking lot. It's very consistent.
Since no one here seems to have had leaf spring issues, I'm going to start looking another direction. I'll try some of your suggestions, thanks.
