1968 Camaro Differential Codes

Rear Axle Code information is stamped on the axle housing for this year.. contains a 7 digit code that tells the stock ratio, month / day of build as well as the production facility, either W - Warren or B - Buffalo
Format is: CA0403B for a 3.08 rear ratio built on April 3rd at the Buffalo plant.

Rear Numerical Codes
Code Positraction Ratio 10 / 12 Bolt
BA   2.56 12
BB X 2.56 12
BC   3.36 10
BD X 3.36 10
BI   2.73 10
BL   3.07 12
BM   3.31 12
BN   3.55 12
BO   3.73 12
BP   2.73 10
BQ X 2.73 12
BR X 3.07 12
BS X 3.31 12
BT X 3.55 12
BU X 3.73 12
BV X 4.10 12
BW X 4.56 12
BX X 4.88 12
BY X 2.73 12
BZ   2.73 10
PB   3.31 12
PE X 3.08 10
PG X 3.07 12
PH X 3.55 12
PK   3.55 12
PN   2.56 12
PO X 2.56 12
PR X 3.31 12
PX X 2.73 12
PY   2.56 12
PZ X 2.56 12
Q2   3.55 12
Q3 X 3.55 12
Q9   3.55 12
QE   3.55 12
QN X 4.88 12
QS X 2.56 12
QT X 2.73 12
QU X 3.07 12
QV X 3.31 12
QW X 3.55 12
QX X 3.73 12
QY X 4.10 12
QZ X 4.56 12

1968