Thump noise in rear end after a 6" Fabtech lift

[NoMoGMPG]

<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by Q8TH2:
I just instaleld a Fabtech 6" lift on my H2, need clarification on a problem: Im experiencing a thumb noise when i turn either direction. A sliding noise then a thumb, and accordingly, the rear end feels way too loose. Any ideas anyone ? </div></BLOCKQUOTE>

Usually when I hear a "thumb" noise, it is from a passing vehicle and is preceded by someone yelling "HEY!" then giving me the thumb.

Seriously though, I would check the panhard rod that connects the rear end to the frame. Check it for loosness and look closely at the bushings for damage.