How To De-Code Your Vehicle Identification Number (VIN)
All VIN information provided by Dave Robson, Creator of "The Dodge Challenger Home Page".
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The most important documentation to come with your Challenger is its VIN(vehicle identification number). You can use this number to check how rare or original your vehicle really is. It would be easy to take, say, a 1970 318 model worth a few thousand Dollars and drop in a Hemi engine and sell it for tens of thousands of Dollars if it were not for the VIN.
The VIN is a thirteen-digit number stamped in various places on the car making it very difficult for anyone to sell the car as something it is not.
The first and main place to find the VIN is on a plate attached to the edge of the dash pad on the driver's side and is visible through the windshield.
The second main place is on the metal tag attached to the top of the driver's side inner fender. This tag also has many of the codes that identify the options that originally came with the car.
The VIN can also be found on a label attached to the rear face of the driver's door that also has the date of manufacture and certifies that the car conforms to federal safety regulations.
Other more discrete places to look for the VIN are the radiator support, the cowl and on the left-hand trunk weather-stripping rail.
Chrysler also took the trouble to stamp the last eight digits of the VIN on the engine and transmission. A car that has the same number stamped in all of these places is referred to as a "numbers matching" car.
The location of the ID pads on the 6 cyl. (left) and V8 (right) engines
and on the auto transmission
Your decoded VIN is displayed below:
Making sense of the numbers
The first digit in the VIN is the car line. For a Challenger this is the letter "J"
This is the price class. The Challenger R/T and Rallye have the letter "S" (for Special). All others have the letter "H" (for High). The Challenger Deputy is reported to have been "L" (for Low) but examples seen seem to have the "H" instead.
Third and fourth digits
This tells us the body type.
23 = Two door hardtop
27 = Convertible
29 = Special Edition car (with the small rear window)
Again there is some confusion as to the Challenger Deputy. The 1971 ordering guide lists it as JL21 but they are known to be stamped JH23.
This is the engine code:
B = 198 ci (1970-71 only)
C = 225 ci (1970-72 only)
G = 318 ci (All years)
H = 340 ci (1970-73 only)
J = 340 ci six pack (1970 only)
L = 360 ci (1974 only)
L = 383 ci (1970-71 only)
N = 383 ci High power (1970-71 only)
R = 426 ci Hemi (1970-71 only)
U = 440 ci (1970 only)
V = 440 ci six pack (1970-71 only)
This is the last digit of the model year (Not necessarily the year of manufacture)
e.g. 0 = 1970, 1 = 1971, etc.
This is the assembly plant code. Challengers were built at two plants in the U.S.
B = Dodge Main, Hamtramck, MI (all models)
E = Los Angeles, CA (no hemi cars or convertibles)
Hamtramck had two production lines (EN1 and EN2 on the fender tag). The R/T cars all seem
to have been built on line #2 (EN2)
I don't know anything about the LA plant.
The last six digits
This is the plant sequential production number starting with the number 100001. It is NOT an indication of the number of Challengers built!