75-76 are the same 2dr and 4dr are different
71-74 take a different WS, 2dr and 4dr again are different..

75-76 Fury With RP,RH,RL,and RM letters in the vin, fits the same years coronet.. Catalog shows those are a " B" Body but 74-76 also had a "C" body gran fury which will NOT fit....

Hope this helps