Yeah, Anthrax, that sound is a harbinger of the trans. damage at higher speeds. Like you said, stay light with it, let the fluid re-lube all the parts, it should be great around town ride easily. Good luck with the rear plugs, they are....well.........This is a family forum
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Flex head socket adapter and/or flexhead ratchet sure help reduce "bad" words,
The bump and grind you related does concern me. I can only go by what you said, but check out those front Ball joints, and the driveshaft U-joints. I think if the trans. was allowed to go dry, so were the greasable components.