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REAR AXLE IDENTIFICATION
The rear axle identification code consists of a
two letter prefix indicating the gear ratio, four digits indicating the
assembly date as month/day, and a single letter suffix indicating the manufacturing
location. The identification code should be stamped on the
bottom or front left or right axle tube either adjacent to the carrier
housing or about 8" - 10" inboard from the backing plates. Note too that
many Protect-O-Plate cards show only the second and third letter of the
code and omit the leading "C" character where some may show all three
letters such as CCW.
CW = 3.31 (Note on this Atlanta P-O-P the rear axle
is coded with the two letter suffix CW.)
0121 = January, 21
B = Buffalo, N.Y. manufacturing location
| Prefix |
Axle Ratio |
| CGD |
2.73 ~ Positraction |
| CCH |
2.73 ~ Positraction |
| CCD |
3.07 ~ Positraction |
| CCP |
2.73 |
| CCA |
3.08 |
| CGA |
2.56 |
| CGC |
2.73 |
| CGF |
3.08 |
| CGG |
3.36 |
| CGB |
2.56 ~ Positraction |
| CGI |
3.36 ~ Positraction |
| CCN |
2.56 |
| CKD |
2.73 |
| CCX |
3.07 |
| *CCW |
*3.31 |
| CKJ |
3.55 |
| CCO |
2.56 ~ Positraction |
| CCF |
3.31 ~
Positraction |
| CKF |
3.55 ~ Positraction |
| CKK |
4.10 |
| CKC |
2.73 ~ Positraction |
| CCE |
3.08 ~ Positraction |
| CRJ |
2.56 |
| CRK |
2.56 ~ Positraction |
| CRU |
3.31 |
| CRV |
3.31 ~ Positraction |
| CRW |
4.10 |
| Assembly Month
- 1st and 2nd numbers |
| Number |
Month |
Number |
Month |
| 01 |
January |
02 |
February |
| 03 |
March |
04 |
April |
| 05 |
May |
06 |
June |
| 07 |
July |
08 |
August |
| 09 |
September |
10 |
October |
| 11 |
November |
12 |
December |
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Assembly Day - 3rd and 4th numbers
01...31
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Rear Axle Assembly Plant
- 5th letter
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| Code |
Assembly Plant |
| *B |
*Buffalo, NY |
| G |
Chevrolet Gear & Axle |
| W |
Warren, MI |
| K |
McKinnon Industries |
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