Guess what's shaking.

Well I took the driveshaft out and found that the front u-joint had
become stiff, but not loose. Most of the vibration was gone with the
shaft out. Sent the shaft back to the shop and they took apart the the
front joint, found it to be fine, but lacked enough grease. Also they
took apart the rubber donut at the rear joint and found a rod inside
that was loose. They cleaned it, lubed it, tightened it, and balance it
again. I have reinstalled the shaft, but now get a vibration at a
different speed, 60 to 75 kph, but then smooths out up to top speed. My
question is, is it still okay to drive with the shaft in as long as I
don't stay in the vibration range? Am I going to do any damage to the
diffs or tranny? Currently on a road trip in northern BC and still have
1500 KM to drive with possible snow condtions, so I would prefer the
shaft be in. However, I did bring tools just in case I need to take it
out. Any advice? Thanks.

R.Feueriegel
88 syncro

P.S. Vibration at it's worst during deceleration.

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