I recently put a custom paint set on my 06 train and the question I have is this. While reinstalling the fuel pump assembly into the tank I couldn't get the top plate to lay completly flat on the tank no matter how much I adjusted it without applying a small ammount of pressure to it . I replaced the gasket and screw kit with a new one and torqued it to spec . It seems to be fine but it just bothered me that the top plate wouldn't lay flat without pressure. Is this normal ?