I have changed my gas tank from the driver side to pass side becasue I have made it a step side. My question is I cant find the part that goes inside the fender to hold the gas cap in place and I also can't find any place that sells the filler neck itself, I have the part where the gas cap goes on but none of the rubber hose and the metal section that welds to the fender. My box is a 82 step side. any help or things you guys might have rigged up would be great. Thanks