My search function isn't working for whatever reason, I know there were several threads regarding the tank. I recently bout a fuel sump to add to my 71 Tank. A called a place and they quoted me $375 to install the sump and seal it. So plan B, I'm going to order the spectra F30 tank and weld the sump in myself. My sending unit works fine, can I reuse my 71 sending unit or which sending unit do I have to use. I'm getting ready to do my fuel system. Here's my shopping list so far: Fuel vapor seal, fuel vapor valve, spectra F30 tank and fuel filler neck seal. Thanks