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1967-1969 Camaro Registry

1968 Camaro 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.

Plant Codes:
  B ~ Buffalo, New York
  G ~ Detroit Gear & Axle
  W ~ Warren, Michigan
  K ~ McKinnon Industries (not verified)

Positraction Codes:
  D ~ Dana
  E ~ Eaton
  W ~ Warner

Casting Numbers:
12-Bolt Casting #3894860
10-Bolt Casting #3894859

The casting numbers/letters on rear end housings may have either a prefix or suffix of "N" or "NF" and no reason has been found yet why they may have one or the other. Axle ratios shown in this table are non-Positraction and standard drum brakes unless otherwise specified.

Prefix 10-bolt/12-bolt Axle Ratio
BA 10-bolt 2.56
BB 10-bolt 2.56 Positraction
BC 10-bolt 3.36
BD 10-bolt 3.36 Positraction
BE 12-bolt 2.56
BF unknown 2.56
BG 12-bolt 2.56 Positraction
BH unknown 2.56 Positraction
BI 12-bolt 2.73
BJ 12-bolt 3.07
BK 10-bolt 2.73
BL 12-bolt 3.07
BM 12-bolt 3.31
BN 12-bolt 3.55
BO 12-bolt 3.73
BP 10-bolt 3.08
BQ 12-bolt 2.73 Positraction
BR 12-bolt 3.07 Positraction
BS 12-bolt 3.31 Positraction
BT 12-bolt 3.55 Positraction
BU 12-bolt 3.73 Positraction
BV 12-bolt 4.10 Positraction
BW 12-bolt 4.56 Positraction
BX 12-bolt 4.88 Positraction
BY 12-bolt 2.73 Positraction
BZ 12-bolt 2.73
PA 10-bolt 3.08
PB 12-bolt 3.31
PC 12-bolt 3.31
PD 12-bolt 3.31
PE 10-bolt 3.08 ~ Positraction
PF 12-bolt 3.31 ~ Positraction
PG 12-bolt 3.07 ~ Positraction
PH 10-bolt 3.55 ~ Positraction
PI 12-bolt 3.55 ~ Positraction
PJ 12-bolt 3.73 ~ Positraction
PK 10-bolt 3.55
PL 10-bolt 3.55
PM 12-bolt 3.73
PN 12-bolt 2.56
PO 12-bolt 2.56 ~ Positraction w/Metallic Brakes
PP 12-bolt 3.07
PR 12-bolt 3.31 ~ Positraction
PS 12-bolt 3.55 ~ Positraction
PT 12-bolt 3.73
PU 12-bolt 3.73 ~ Positraction
PX 10-bolt 2.73 ~ Positraction
PY 12-bolt 2.56
PZ 12-bolt 2.56 ~ Positraction
QA 12-bolt 4.10 ~ Positraction
QB 12-bolt 4.56 ~ Positraction
QC 12-bolt 4.88 ~ Positraction
QD 12-bolt 4.10 ~ Positraction
QE unk 3.55
QF 12-bolt 4.10 ~ Positraction
QG 12-bolt 4.56 ~ Positraction
QH 12-bolt 4.88 ~ Positraction
QI 12-bolt 2.73 ~ Positraction
QJ 12-bolt 3.07 ~ Positraction
QK 12-bolt 3.31 ~ Positraction
QL 12-bolt 3.31
QM 12-bolt 4.88 ~ Positraction
QN 12-bolt 4.88 ~ Positraction w/4 wheel disc
QO 12-bolt 3.07
QP 12-bolt 3.07 ~ Positraction
QQ 12-bolt 3.31
QR 12-bolt 3.31 ~ Positraction
QS unknown 2.56 ~ Positraction w/4 wheel disc
QT 10-bolt 3.07 ~ w/4 wheel disc
QU 12-bolt 3.07 ~ Positraction w/4 wheel disc
QV 12-bolt 3.31 ~ w/4 wheel disc
QW 12-bolt 3.55 ~ Positraction w/4 wheel disc
QX 12-bolt 3.73 ~ w/4 wheel disc
QY 12-bolt 4.10 ~ Positraction w/4 wheel disc
QZ 12-bolt 4.56 ~ Positraction w/4 wheel disc
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

Assembly Day - 3rd and 4th numbers
01...31

Rear Axle Assembly Plant - 5th character

Code Assembly Plant
B Buffalo, NY
G Detroit Gear & Axle
W Warren, MI
K McKinnon Industries

09/04/2009
BP ~ 10-bolt 3.08
0606 ~ June 6
G ~ Detroit Gear & Axle
2 - 2nd shift

 

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