Hey John! Long time no see! Well I guess I didn't have to go any further than a local club member for the answer. Thanks!
It needs to be replaced because the clips on the u-joint caps that center the u-joint in the yoke wore into the yoke. The driveshaft now moves around even with the straps tight which causes a vibration of varying intensity from about 50 mph on up. My rear view mirror is just a blur, not to mention the risk of u-joint, pinion bearing, and seal damage. :frown: Oh yeah...and there is a clunk and a jerk in the rear when going from reverse to drive. I cringe every time I have to do it.