this is from andy440.com

he is talkin about his dodge,but same for your gtx




Which brings us to where to look for the body numbers, to see if our car has been rebodied or not? There are two places to look on the 67-70 cars, one is on the front radiator support. It can be on the top of the support like mine, or on the back side facing the engine. The number you see starts with an "A" which stands for the assembly plant, in this case Lynch Road. The next digit is an "8" which stands for the model year - 1968. Next is a "W" which means Coronet body. The next six digits are the shipping order number, and you can see they match my fendertag. This same number is also stamped on the rear of the car under the weather stripping on the driver's side trunk area, for 1968 and newer. 1967 will be stamped on the rear bumper mounting area of the body. 1969 and newer cars have the last eight digits of the VIN instead of the shipping order number.

Last edited by csk; 12/07/13 10:16 PM.
1968 Charger COLD A/C Hilborn EFI
512ci 9.7 compression, Stealth heads, 4.10 gear A518 ODtrans 4100lb,10.93 full street car trim
2020 T/A 392 Stock 11.79 @ 114.5