THIS SEAT IS FOR THE 82 And 83 passports only. NOW THE CATCH... YOU MAY HAVE TO FILE OR DRILL THE MOUNTING HOLES SOME THIS SAYS C50c ON THE REAR, WHICH WOULD WIPE OFF WITH ACEATONE OR CARB CLEANER ON A RAG... AND THE FOAM IS ON THE STIFFER SIDE. THE PAN IS MADE OUT OF STEEL, WHICH IS GOOD, RIGHT (: THIS WOULD PROBABLY WORK ON THE 1980 AND 81, BUT THE SEAT LATCH WON'T WORK, SO IT WOULD JUST FLOP UP AND DOWN 1003L c50c @ CLICK ON PICTURE TO SEE FULL SIZE