79-83 PASSENGERS SIDE WILL FIT FLEETSIDE LONG BEDS WITH 20 GALLON TANKS OR SHORT BEDS WITH 16 GALLON AS PICTURED. THESE ARE FOR TRUCKS WITH FUEL DOORS. (FILLER WILL FIT EITHER SIDE BUT THE RUBBER HOSES ARE DIFFERNT FROM SIDE TO SIDEHOSES ARE SHOWING THERE AGE)(84-87 TAKE A DIFFERNT STYLE OF FILLER NECK)
REMOVED FROM A 1980
THE FUEL NECK BEEN REEMED OUT MOST LIKLY WAY BACK WHEN YOU COULD GET LEADED FUEL AND THE NOSSEL WAS A LARGER DIA. SEE PICS