Are these Sharktooth Grille Pig Tails?

Those pig tails and sockets are the same ones that are in the 72 & 73 Cudas but i can't tell exactly what you have because your ground connectors have been cut off. From what i remember 71 Sharks Tooth grill used the same one as a 72-73 Cuda with the flat design plug and i believe the only difference was the ground wire connector. A 72-73 Cuda uses a square design ground wire plug and a 71 A-Body sharks tooth grill uses a round ground wire connector for a screw. Those in the pic below the sharks tooth grill on e-bay are for a 72 i just sold a set of those recently. All Sharks tooth grills 71 or 72 use twist in connectors and they are different than 73 Duster ones 74 Duster ones do not plug in they are integrated right into the forward lamp wiring harness. 70 71 72 Standard Duster grills are all bolt in sockets. 70 and 71 have flat plugs and 72 has the grey square plug providing you are using the factory correct year wiring harnesses