You are buying 4-Door Hinge Pins
Diameter .345 Replaces OEM Part #6271989
Pin Length 4-1/8"
Fits most GM Cars & Trucks starting in 1976
GM Cars 76-77 A B C E F G T X
Trucks 73-84 C/K & G Series
Will fits others that measure the same size and look like what we have in pictures