Was trying to do some research on Mustang sending units in a 77 Ford Maverick. Different people make different options for a return lines sending you for the Ford Mustang. Is there anyone who knows what year mustang sending unit fit the 77 mav. Let me know. I have aftermarket gages so I can make any sending unit work.. I just need one with the return on. I don't want to drop the tank to and a return.