The Body Tag can tell you a lot of
things about your Monte Carlo also! The body tag is located on the top of the
firewall on the drivers side. You must open your hood and look above the master
cylinder. I drew up this picture and each different number is labeled.

I have the following
information about the codes
The time built code tells you when
the car was manufactured. The first two numbers tells you the month (for
example, 02=Feb., and 11=November). The third number is the week (A=first week
in that month, C=the third, etc. The built date on the body tag could be 4 to 8
weeks off date coded parts.
The year code is very self
explanatory (70=1970 etc.)
The division series is the model
info. See VIN
Decoding for more info on this.
The Assembly Plant code tells you
where your Monte Carlo rolled off the assembly line! This is just some
interesting information to know. Go to my VIN
Decoding part of this site for a list of plants.
The unit number tells you the
number that the car was made. This figure started at 1000001.
The paint code tells you the
original color of your monte. The first number tells you the body color and the
second tells you the top or upper body color.
The trim code tells you about the
seats and type of interior that was originally installed in your Monte Carlo.
Below is the translated codes:
-
A41=4-way front power bench
seat
-
A46=4-way front power bucket
seat
-
A51=Front Strato bucket seat
-
A75=Heavy Duty Front Bench
-
A81=Headrest Strato
-
A82=Headrest Conventional