2003 Dodge Ram 3500 long box diesel with 6 Speed NV5600 transmission, family owned truck since new. It has a 35 gallon fuel tank. Had the fuel lift pump conversion (68003870-AB) in November, 2014 at 163K miles. Had another fuel pump (Delphi EFG1080) installed in August, 2018 at 197K miles. (Dad...