I'm the one that said he had a bad drive shaft u joint. If you grab the front drive shaft when it does not have any load on it, you will see the center part of the joint moving inside the caps. Its not a big deal to change out, IF you have access to a small press since only one set of caps need to be pressed out then one set of new pressed back in.
Aaron, I might be interested in the spicer joints, even tho I just purchased two 5-760s today from 4ws.