@@omeroayala1961 it was this plastic ring in the end. Got it done with a quarter of tank left. It wasn’t too heavy. Some things were annoying to take off but i was being careful to not break anything and make it worse. I ended up changing out the Valve canister as well since i was in the area.
FYI There is a recall on this part for the 2006-2007 Mazdaspeed6 and 2009-2011 RX-8. The part number, at least for the RX-8 is the same as the part for the Mazdaspeed3. STATEMENT ON SAFETY RECALL 5121I OF CERTAIN MAZDA RX-8 AND MAZDASPEED6 VEHICLES FUEL MAY LEAK FROM FUEL PUMP MOUNTING RINGS