Thanks Richard!!!  Linkage fixed!!!  It was actually a little rattle, but by the time it resonated up through the floorbords of my Jeep, it was a loud thumping.  At first I thought it was something a lot more serious.
I even got a couple Pics.
First - the linkage before.
Second - Jeep Linkage bracket with the body lift extension bracket attached.
Third - Body lift bracket next to my new bracket.  
I think it turned out pretty good considering I only had a hand drill and sawsall to build it with.  And, I had to build it twice.  When I installed the first one, the linkage was perfectly parallel with the ground.  But the end of the linkage (red arrow in first picture) was hitting on the transmission (green arrow).  I built the second one about 1/2" to 1" shorter than the first.  Works perfectly.  
I'll post up more about it when I start my "Project Thread" this Spring.  Gotta take the top off first so the pictures come out.
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