That SN is for the 3306 engine only & they went in prouction in 1973 so I would guess you took the number from the engine block tag. Go to the back housing of the trans. above the drawbar & there should be a tag there near the top.There are so many D5Bs made in the world so you,ll need the right SN. to give you the info you need.There were some made in France so maybe that,s where yours came from.