Thanks to FMCA Forum, I'm scheduled for the "Death Wobble" fix. A call to FCA Consumer line yesterday, and the fortunate connection with Jennifer, who knew exactly what I was talking about, resulted in a return call today from FCA, telling me that sufficient parts are expected by the end of April. I've been assured that I will receive a call verifying my then-current location, and that the installation will be completed at no charge to me. Both reps from FCA were very courteous and helpful. I don't want to be skeptical, because the "Death Wobble" is certainly an attention-getter, and I want it fixed asap!
Anyway, it appears that help is on the way.