HI  HAVE BEEN READING YOUR POSTS HERE AND THERE AND SURE ENJOY READING SOMETHING THAT MAKES SENSE.THANKS MUCH   NOW THAT THAT IS OVER, WONDER IF YOU GOOD HELP ME IDENTIFY A OLIVER I BOUGHT,AM GOING TO MAKE A ANTIQUE PULLER OUT OF IT. WHEN I BOUGHT IT IT WAS SURPOSED TO BE A SUPER 99.AFTER A COUPLE E MAILS LARRY HARSIN SAID IT IS A 99 .WOULD LIKE TO KNOW WHY BUT HE JUST SAID IT WAS AND THAT WAS THAT    WHAT IS THE BIGGEST DIFFERENCE BETWEEN THESE 99?  MINE HAS 18-26 REARS AND 4SPEED TRANS WITH BELT PULLEY ON RT SIDE OVER TRANS. ENGINE TUB CASTING #7A500.OLIVER BOOK I HAVE SAID EARLY SUPER 99 USED THE 4 SPEED TRANS LIKE THE 99 EXCEPT INPUT SHAFT USED CHAIN COUPLING  WHICH IS LIKE MY TRANS.IT WAS MISSING ENGINE AND CLUTCH COVER AND I GUESS THAT IS WHERE SER # WAS.  I AM GOING TO SOMEHOW PUT A 3-71 DETROIT IN IT BECAUSE THAT WAS WHY I BOUGHT IT.MY SON AND I PULL AT LOCAL PULLS AND FAIRS UP HERE IN N.H. WITH ACOUPLE JD A. NOBODY AROUND HERE WILL TELL ME ANYTHING BECAUSE THEY CANT STAND COMPETION.I OWN AND RUN A HEAVY EQUIPMENT AND TRUCK SHOP SO I SURE DO KNOW WHAT A DETROIT IS.I HAVE 4OR5 3-71 IN OLD HD7 DOZERS AND CAN MAKE A ENGINE I AM SURE .  GUESS I RAMBLED ON BUT DIDNT FEEL RIGHT JUST ASKING WHAT I WANTED AND RUN AWAY!  GUESS QUESTION HOW DO YOU TELL WHAT IT IS? THANKS MUCH AND EVEN MORE IF YOU CAN SHED LIGHT ON THIS NIGHTMARE  THANKS DON YOUNG