[mshelby]

Just had my transmission rebuilt two weeks ago and drove the (97 voyager 3.0 engine) van on a trip of only 400 miles last weekend.

I noticed a "thumping" sound which was accompanied by a slight vibration when driving at speeds between 40-60 mph.

It almost sounded and felt like I had a tire whose radial belts had seperated. I checked out the tires (they were fine) and drove the van back home.

When I checked it out at home I noticed that the pulley which goes to the crankshaft was the "thumping" I heard. It looks like it is not wobbling to the timimng of the "thump."

The pulley seems to be tight. Is it possible that the crankshaft is bent? If so, would this have anything to do with the transmission I had rebuilt?