I'd take a quick check of the front U-joints. At 100k they both should
need replacing. Check for a tell talke ring of rust around the grease
seals on the cross shafts.

Mike Becker wrote:

> Thanks in advance for any help you can offer on this. I've spent about
> $400 on two different sets of wheel hubs trying to track this one down and
> have worn out the search function of web forums and newsgroups.
>
> I have a '98 Cherokee with about 100k miles on it. During any sort of
> slower turn (sub 15mph) a loud "clunk" noise shoots out from the front end
> of the vehicle. It is sometimes a single clunk, and sometimes a rapid 3-4
> succession of clunks. Standing outside the vehicle, it sounds like it's
> coming directly from the wheel. It clunks from either the left or right
> side, but never both.
>
> When this first started, I assumed the hubs were shot and replaced them.
> Unfortunately the problem continued. Everything I read was still pointing
> at the hubs, so I went ahead and bought a different set from Napa, but the
> problem remains.
>
> I'm pretty sure my hub installation is solid: 175ft-lbs on spindle nut, 75
> ft-lbs on hub bolts, and lots of bearing grease everywhere. At this point
> I'm assuming the problem is in either the steering or suspension. Of
> course, I've checked it over fairly well, and it seems solid.
>
> Does anyone have any suggestions at all for what it might be, and a how I
> could test?
>
> THANKS a TON!!
>