Vibration over 40 mph.

No I don't. The more I figure on this, the more I convince myself it' in the driveline. I was driving it today and it was vibrating mildly at 60 mph cruise. I got the OD on switch, the rpm dropped to 2000 and the vibration stayed constant. Going to remeasure angles now. My "honey do" list is done.
Cley