The letter J in the fifth spot of the VIN tag confirms Hemi status. Lets break it down: RM21 = Road Runner two-door coupe; J = 426 Street Hemi; 9 = 1969 model year; A = Lynch Road, Michigan, assembly plant; 159384 = 59,384th vehicle assembled at Lynch Road for the model run (Chrysler began the sequence number with a 1, e.g. the first vehicle made would carry number 100,001). Reproduction VIN tags are available, but the patina and OE rivets offer proof nothing’s been tampered with here. Base 383 Road Runners carry engine code H, mid-year 440 Six Pack cars use code M.