I suspect as Beltfed mentioned, the shocks are to loose.
Joe
Shocks are too loose? Explain...
It's very rythmic, like rotational kind of, know what I mean? It's is consistant, like a steady bounce- not sporatic or itermittant. And like I said, this is just cruising at low speed down smooth fresh blacktop. Almost feels like a wheel/tire issue except that I don't feel any vibration or shimmy in the steering wheel. The tires are probably about 3 years old, but have less than 1000 miles on them. I had them balanced about two years ago.
WHatever is happening, it is definitely coming from the back, and must have something to do with whatever I messed with- the springs or shocks, because it didn't do this before. I also mounted my gas tank and battery back there under the bed at the same time I did the springs and shocks, but I don't think that would have anything to do with it.
