No, I'm talking about the retaining ring that the whole pump assembly twists into onthe floor of the fuel tank. The redesgned assembly is held in from the top of the tank and requires the removal of that retaining ring.
This post here, might clarify what I'm talking about.
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EDIT
So the tool is $157.XX + shipping and tax
, soo uhh... How the hell did you guys that have installed this thing do it?!?