Just started utting my car back together after 4 years due to multiple headgasket failures. well I'm happy o say that I think that I have finally found the problem. When I installed my fuel pump to the tank it bottoms out and pushes the tank at bottom I measured the tank thru opening from bottom to the lip and it measures 7 3/4" but the pump measures 8" from sealing lid to bottom ring. I either have the wrong sending unit or tank is distorted. Can someone please measure theirs if they just happen to have one laying around to help me confirm which is wrong.