help on a 3-or-4 speed top loader,what is it?d2ar

[robneedshelp]

hi all,new guy here,grandfather has passed and iam trying to run some part numbers on stuff left in the shed. i have a manual with a 302 housing i know that much anyway here are the numbers and hope some one can help!! on the body is a number of D2AR UNDER THAT IS 7006 NEXT TO THE BOTH BIGGER IS THE LETTERS AB I CANNOT FIND A NUMBER ON THE BELL HOUSING AS OF YET JUST N1 BY THE STARTER MOUNT TAIL HOUSING HAS A NUMBER OF C4DR-7A040-B.. NUMBER ON THE BEARING RETAINER IS C5AR 750 AND THEN LOOKS TO BE A B OR A NUMBER 8? LAST BUT NOT LEAST THERE IS A TAG ON THE BODY OF RAN CA1 THEN UNDER THE RAN IS CA 028646
CAN ANYONE HELP?? WHAT IS THIS? I KNOW MY GRANDFATHER RAN AROUND RACERS IN THE 60'S TO THE 70'S BUT YOU KNOW OLD TIMERS AND THERE STORYS..THANKS ALL IN ADVANCE!OH YEAH,IT DOES HAVE A 8 BOLT MOUNT ALSO IF THAT HELPS