My CV's click in 4wd if I have the t-bars cranked. Because they click doesn't necessarily mean they are bad, or at least need to be replaced.

As for the clunk it could be a number of things. I'd say try to see if there is play in the front drive shaft. Also, check the diff mounts.

Frank

1994 4runner, 3.0, auto, 4.88's, 31's, BJ spacers, Coil spacers, air shocks, D-ring anchors, 4Crawler F/R swaybar discos.
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