Over the last month and yesterday....
Replaced differential and drivers half shaft. Had a slight throttle whine above 65 MPH and thought I had a leak on the outer boot of the drivers half shaft. Sourced a differential and both shafts with 11k on them from a wrecking yard in Soth Dakota. Turns out the half shaft had a hunk of tar stuck to it and is not leaking. The differential change took care of the barely audible part throttle whine. Yesterday I turned the driveline 120 degrees because i felt a slight vibration, I also took apart, cleaned, loc-tited and torqued to spec all the fasteners that I had apart when I dropped the diff. Vibration is gone, whine is gone.
Changed the steering dampener yesterday, old one felt the same as the new one, saving the old one.
Thinking about doing the ignition sticky fix before or if it becomes a problem.
I am also contemplating doing the TPMS fix to get rid of the warning indicator which is on presently with all good tire pressures.

BTW, I was able to drop the diff by removing the exhaust, unbolting the carrier and dropping it down with my tranny jack and popping the half shafts loose. It helps to have a 4 post lift and 72" tranny jack. Didn't want to have to get a re-alignment. I also re-used the shims on the front of the old diff and transferred them to the new diff. I suppose they are used for pinion angle but have no idea what is required...nose up or down how many degrees? I think it's ok as there isn't a hint of vibration.

If anyone needs a halfshaft with 11k or 42k or a differential with 42k and a probable worn front pinion bearing drop me a note.