Rusty Nuts ...
Disclaimer...
The following information was gathered from various sources. Most of the following information was published as articles in various car magazines and manuals. Some of it was furnished from various web sites. I had copied and saved the information into a spiral tablet and saved it for personal use.I do not recall the publication title, nor the authors names. I do believe that the information has been published by various others over the years. If anyone recalls exactly which magazines and who the author was that this data appeared in, please let me know so I can give credit to the proper individuals.
Being as it is good information.. I thought that I would share it.
1965 - 1979
BA, CBA, DL, etc.......
|
CODE Prefix |
|||||||||
| B _ | C_ | D_ | F_ | G_ | J_ | P_ | Q_ | T_ | 2_ |
|
Code |
Year |
Ratio |
Notes |
|
BA |
65/66/67 |
3.08 |
Open
10-bolt |
|
BA |
68/69 |
2.56 |
Open
10-bolt |
|
BB |
68/69 |
2.56 |
posi
10 bolt |
|
BC |
65/66/67/68/69 |
3.36 |
Open10
bolt |
|
BD |
68/69 |
3.36 |
posi
10-bolt |
|
BE |
65/66/67 |
3.08 |
Posi
10 bolt |
|
BF |
65/66/67 |
3.36 |
Posi
10 bolt |
|
BG |
65/66/67 |
3.55 |
Posi
10 Bolt |
|
BH |
66/67 |
3.55 |
open |
|
BI |
68/69 |
2.73 |
open |
|
BJ |
65/66 |
3.08 |
open
(metallic brakes) 10 bolt |
|
BK |
65/66 |
3.08 |
posi
(metallic brakes) 10 bolt |
|
BK |
68 |
2.73 |
open |
|
BL |
65/66 |
3.36 |
open
(metallic brakes) 10 bolt |
|
BL |
68/69/71 |
3.07 |
open
12-bolt |
|
BM |
65/66 |
3.36 |
posi
(metallic brakes) 10 bolt |
|
BM |
68/69/71 |
3.31 |
open
12-bolt |
|
BN |
65/66/68/69 |
3.55 |
open
(metallic brakes) 10 bolt |
|
BO |
66 |
3.55 |
posi
(metallic brakes) |
|
BO |
69 |
3.73 |
open
12-bolt |
|
BP |
68/69 |
2.73 |
open |
|
BQ |
66/67 |
3.31 |
open
12-bolt (327 Special Hi-Per) |
|
BQ |
68 |
2.73 |
posi
12-bolt |
|
BQ |
69 |
2.73 |
posi |
|
BR |
66/67/68/69/71 |
3.07 |
posi
12-bolt |
|
BS |
66/67/68/69/71 |
3.31 |
posi
12-bolt |
|
BT |
66/67 |
3.07 |
open
12-bolt (metallic brakes) |
|
BT |
68/69 |
3.55 |
posi |
|
BU |
66/67 |
3.07 |
posi
12-bolt (metallic brakes) |
|
BU |
68/69 |
3.73 |
posi
12-bolt |
|
BV |
66/67 |
3.31 |
open
12-bolt (metallic brakes) |
|
BV |
68/69 |
4.10 |
posi
12-bolt |
|
BW |
66/67 |
3.31 |
posi
12-bolt (metallic brakes) |
|
BW |
68/69 |
4.56 |
posi
12-bolt |
|
BX |
65 |
2.73 |
open
(327 - powerglide) |
|
BX |
68/69 |
4.88 |
posi
12-bolt |
|
BY |
65 |
2.75 |
posi |
|
BZ |
65 |
2.73 |
open
(metallic brakes) |
|
Code |
Year |
Ratio |
Notes |
|
CBA |
70 |
2.56 |
Open
10-bolt |
|
CBB |
70 |
2.56 |
posi
10-bolt |
|
CBC |
|
3.36 |
open
10-bolt |
|
CBD |
|
3.36 |
posi
10-bolt |
|
CBL |
|
3.07 |
open
12-bolt |
|
CBM |
|
3.31 |
open
12-bolt |
|
CBN |
|
3.55 |
open |
|
CBP |
|
2.73 |
open
10-bolt |
|
CBR |
|
3.07 |
posi
12-bolt |
|
CBS |
|
3.31 |
posi
12-bolt |
|
CBT |
|
3.55 |
posi |
|
CBW |
|
4.10
|
posi
12-bolt |
|
CPA |
|
3.08 |
open
10-bolt |
|
CPE |
|
3.08 |
posi
10-bolt |
|
CPI |
|
2.56 |
open
10-bolt |
|
CPJ |
|
2.56 |
posi
10-bolt |
|
CPO |
|
3.08 |
open
10-bolt |
|
CPR |
|
3.08 |
posi
10-bolt |
|
CPX |
|
2.73 |
posi
10-bolt |
Nova
Axle Ratio Code Table
|
Code |
Year |
Ratio |
Notes |
|
DA |
62/63/64 |
3.36 |
open |
|
DB |
62/63/64 |
3.08 |
open |
|
DC |
62/63/64 |
3.55 |
open (4cyl - 3 speed manual) |
|
DD |
62/63/64 |
3.55 |
posi
(4cyl) |
|
DE |
62/63/64 |
3.36 |
posi |
|
DF |
62/63/64 |
3.08 |
posi |
|
DH |
62/63/64 |
3.08 |
Posi
(6 cyl) |
|
DJ |
62/63/64 |
3.08 |
open
(metallic brakes) |
|
DK |
62/63/64 |
3.08 |
posi
(metallic brakes) |
|
DL |
62/63/64 |
3.36 |
open
(metallic brakes) |
|
DM |
62/63/64 |
3.36 |
posi
(metallic brakes) |
|
DN |
62/63/64 |
3.55 |
open
(4cyl - metallic brakes) |
|
DP |
62/63/64 |
3.55 |
posi
(4cyl - metallic brakes) |
Nova
Axle Ratio Code Table
|
Code |
Year |
Ratio |
Notes |
|
FD |
65 |
2.73 |
posi
(metallic brakes) |
|
FG |
76 |
3.08 |
open |
|
FI |
66/67 |
3.55 |
open
12-bolt (close ratio 4 speed) |
|
FJ |
66/67 |
3.55 |
open
12-bolt (metallic brakes) |
|
FK |
66/67 |
3.55 |
posi
12-bolt (metallic brakes) |
|
FK |
76 |
2.73 |
open |
|
FL |
66/67 |
3.55 |
posi
12-bolt |
|
FM |
66/67 |
3.73 |
open |
|
FN |
66/67 |
3.73 |
open
(metallic brakes) |
|
FO |
66/67 |
3.73 |
posi
(metallic brakes) |
|
FP |
66/67 |
3.73 |
posi |
|
FQ |
66/67 |
3.07 |
open
12-bolt (327 Special Hi-Per) |
Nova
Axle Ratio Code Table
|
Code |
Year |
Ratio |
Notes |
|
GF |
75 |
3.42 |
open |
|
GJ |
71 |
2.56 |
open
10-bolt |
|
GK |
71 |
2.56 |
posi
10-bolt |
|
GR |
71 |
3.08 |
open
10-bolt |
|
GS |
71 |
3.08 |
posi
10-bolt |
|
GT |
71/72 |
3.36 |
open
10-bolt |
|
GW |
71 |
3.36 |
posi
10-bolt |
Nova
Axle Ratio Code Table
|
Code |
Year |
Ratio |
Notes |
|
JA |
73/74 |
2.73 |
open |
|
JA |
75 |
2.56 |
open |
|
JB |
72/75 |
2.73 |
open |
|
JB |
73/74 |
3.08 |
open |
|
JC |
72 |
3.08 |
open |
|
JC |
73/74 |
3.42 |
open |
|
JD |
75 |
3.08 |
open |
|
JE |
72 |
3.42 |
open |
|
JI |
72 |
3.08 |
open |
|
JK |
72 |
3.42 |
open |
|
JM |
73/74 |
2.73 |
posi |
|
JN |
72 |
2.73 |
posi |
|
JN |
73/74 |
3.08 |
Posi |
|
JP |
73/74 |
3.42 |
posi |
|
JQ |
72 |
3.08 |
posi |
|
JS |
72 |
3.42 |
posi |
|
JU |
75 |
2.56 |
open |
|
JV |
75 |
2.73 |
open |
|
JW |
72 |
3.08 |
posi |
|
JX |
75 |
3.08 |
open |
|
JY |
72 |
3.42 |
Posi |
|
JZ |
75 |
3.42 |
open |
|
Code |
Year |
Ratio |
Notes |
|
PA |
68/69 |
3.08 |
open
10-bolt |
|
PA |
75/76/77/78/79 |
2.73 |
open |
|
PB |
69 |
2.56 |
open
10-bolt |
|
PC |
69 |
2.56 |
Posi
10-bolt |
|
PC |
75/76/77/78/79 |
3.08 |
Open |
|
PE |
68/69 |
3.08 |
posi
10-bolt |
|
PE |
78/79 |
3.42 |
open |
|
PH |
68 |
3.55 |
posi
10-bolt |
|
PH |
75/76/77/78/79 |
2.56 |
open |
|
PI |
71 |
2.56 |
open
10-bolt |
|
PJ |
71 |
2.56 |
posi
10-bolt |
|
PJ |
78/79 |
2.41 |
open |
|
PK |
68 |
3.55 |
open |
|
PL |
69 |
3.55 |
open |
|
PO |
71 |
3.08 |
open
10-bolt |
|
PR |
71 |
3.08 |
posi
10-bolt |
|
PS |
78/79 |
2.41 |
posi |
|
PT |
75/76/77/78/79 |
2.56 |
posi |
|
PU |
75/76/77/78/79 |
2.73 |
posi |
|
PW |
72 |
2.73 |
open |
|
PW |
75/76/77/78/79 |
3.08 |
Posi |
|
PX |
68/69/72 |
2.73 |
posi
10-bolt |
|
PY |
75/76/77/78/79 |
3.42 |
posi |
|
PZ |
75/76/77 |
3.42 |
open |
Nova
Axle Ratio Code Table
|
Code |
Year |
Ratio |
Notes |
|
QE |
68 |
3.55 |
open |
|
QL |
68 |
3.31 |
open
12-bolt |
Nova
Axle Ratio Code Table
|
Code |
Year |
Ratio |
Notes |
|
TX |
77 |
3.08 |
open |
|
TY |
|
2.73 |
open |
|
TZ |
|
2.56 |
open |
Nova
Axle Ratio Code Table
|
Code |
Year |
Ratio |
Notes |
|
2PA |
75/75/77/78/79 |
2.73 |
open |
|
2PC |
75/75/77/78/79 |
3.08 |
open |
|
2PU |
75/75/77/78/79 |
2.73 |
posi |
|
2PW |
75/75/77/78/79 |
3.08 |
Posi |
|
|
|
|
|
|
2TA |
79 |
2.56 |
open |
|
2TB |
79 |
2.73 |
open |
|
2TC |
79 |
3.08 |
open |
|
2TE |
79 |
2.41 |
open |
|
2TV |
78 |
2.41 |
open |
|
2TX |
78 |
3.08 |
open |
|
2TY |
78 |
2.73 |
open |