OK - I discovered that the fuel gauge itself can be replaced w/o replacing the entire cluster assy... For about the same price as I paid for a new fuel sending unit. (Didn't fix my dancing fuel gauge.)

So who wants to be the guinna pig & try this out? $88.55
Here is the p/n & link: 8-97211-467-0
http://myisuzuparts.com/

Then go here to put the p/n in to determine pricing: http://isuzuparts.com/partscat.html

C'mon, I already blew roughly $80 on the fuel sending unit...