The vinis on the A pillar, about 1/2 way up from the dash to the roof. It'll also be stamped on the frame, next to the steering box. It should read-Series,H=1/2 short, M=1/2 long, J=3/4, L=1 ton.Next is year-255, then assembly plant,A=Atlanta,B=Baltimore,F=Flint, J=Janesville,K=Kansas City,L=Los Angeles, N=Norwood, O=Oakland, S=St. Louis, T=Tarrytown. The last 6 digits are the sequence number, starting with 01001. The XA code on the engine is for 3/4 ton with manual trans, 235 123 hp, 7.5 copression ratio.
