Partial Answers:
Bad CV = Clicking while the wheel is turning, I think it clicks more as you turn in the direction of the damaged CV.

Vibrations = LOTS of stuff. Just have to run it's location down. But with the two piece Driveshafts, as has already been mentioned, you get lots of vibration especially with lifts due to the increased angle. But even with stock driveshaft you get the wonderful shaking.

The carrier bearing and the three "U-joints" that make up your two-piece driveshaft need lubing and monitoring. When they get old and worn (like mine just last week) they cause a WHOLE lotta shakin! And you'll know sumthin is up. I had the two end U-joints and the carrier bearing replaced. It is back to only rattling during quick take offs from a stop...as "quick" as you can get with our power houses! <img src="/forums/images/graemlins/lol.gif" alt="" />

Good luck

Dana