Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHEVROLET1969BROOKWOOD 5.3L ENG, AUTOMATIC TRANS, TRANS MFR CD POWERGLIDEREPAIR AND DIAGNOSIS (SINGLE PAGE)DRIVELINES & AXLESDIFFERENTIALS & DRIVE AXLESREAR AXLES1971 AXLE RATIO CODES
1969 Chevrolet Brookwood 5.3L Eng, Automatic Trans, Trans Mfr CD Powerglide
1971 Axle Ratio Codes
1969 Chevrolet Brookwood 5.3L Eng, Automatic Trans, Trans Mfr CD PowerglideSECTION 1971 Axle Ratio Codes
Buick
| Axle Ratio | Conventional | Positive Traction |
|---|---|---|
| 2.56-1 | LKB | LTB |
| 2.73-1 | LLB, NKB, NKO, NKC, NKK | LOB, NTK, NTC, NTB |
| 3.08-1 | LAB, NAB, NAC, NAK, NAO | LSB, NPB, NPC, NPK |
| 3.42-1 | LHB, NHB, NHO | LWB, NSO, NSB |
Chevrolet (Upper Series)
| Axle Ratio | Conventional | Positraction |
|---|---|---|
| 2.73-1 | UD, YD, NK | YH, VH, NT |
| 3.08-1 | UF, YF, WP, NA | VD, ZD, XJ, NP |
| 3.42-1 | UH, ZH, WJ | VF, ZF, X3 |
Chevelle
| Axle Ratio | Conventional | Positraction |
|---|---|---|
| 2.56-1 | GA | GB |
| 2.73-1 | GC, KD, GH | CF, GD, CH |
| 3.08-1 | GN | |
| 3.31-1 | CW, GF, RU | RV, CF |
| 3.36-1 | GG | G1 |
| 4.10-1 | RW |
Nova
| Axle Ratio | Conventional | Positraction |
|---|---|---|
| 2.56-1 | PT, GJ | PJ, GK |
| 3.07-1 | BL | BR |
| 3.08-1 | PO, GR | PR, GS |
| 3.31-1 | BM | |
| 3.36-1 | GT | GW |
Comoro
| Axle Ratio | Conventional | Positraction |
|---|---|---|
| 2.73-1 | GZ | CA |
| 3.08-1 | GX | GY |
| 3.42-1 | CK | CJ |
| 3.73-1 | CG | |
| 4.10-1 | CB |
Corvette
| Axle Ratio | Positraction |
|---|---|
| 3.08-1 | AW |
| 3.36-1 | AX, LR |
| 3.55-1 | AA |
| 3.70-1 | AB |
| 4.11-1 | AC |
| 4.56-1 | AD |
Vega
| Axle Ratio | Convential | Positraction |
|---|---|---|
| 2.92-1 | HA | HD |
| 2.03-1 | HB | HG |
| 3.36-1 | HC | HH |
Oldsmobile
| Axle Ratio | Conventional | Anti-Spin |
|---|---|---|
| 2.56-1 | R2, SI, ND | R3, ST |
| 2.73-1 | SA, TA, NK | SB, TB, QS |
| 2.93-1 | QU, QI, QE | QV, QL, QJ |
| 3.08-1 | SR, SC, SM, NA | SD, SN |
| 3.23-1 | TQ TG | SS, TH |
| 3.42-1 | SE, QH | SH, TM, QM |
| 3.73-1 | TO |
Pontiac (Upper Series)
| Axle Ratio | Conventional | Saf-T-Track |
|---|---|---|
| 2.56-1 | UCP, UCK | VCP, VCK |
| 2.73-1 | UDP, UDK | VDP, VDK, ZDP |
| 3.08-1 | NAG, NAK, NAB | NPG, NPK, NPB, NPO |
| NAO, YFP, UFP, WPK | ZFP, VFP, XJK | |
| 3.23-1 | UGP, WAK, YGP | VGP, XLK, ZGP |
| 3.42-1 | NHB, NHO, UHP | NNB, NNO, VHP |
| WJK, YHP | X3K, ZHP |
Grand Prix
| Axle Ratio | Conventional | Saf-T-Track |
|---|---|---|
| 2.78-1 | ACP | BCP |
| 3.07-1 | WTK | XTK |
| 3.08-1 | AEP | BEP |
| 3.23-1 | AFP | BFP |
| 3.31-1 | WUK | XUK |
| 3.55-1 | WVK | XVK |
Firebird
| Axle Ratio | Conventional | Saf-T-Track |
|---|---|---|
| 2.73-1 | GZG | CAG |
| 3.08-1 | GXG | GYG |
| 3.42-1 | CKG | CJG |
| 3.73-1 | CGG | |
| 4.10-1 | CBG |
T-37
| Axle Ratio | Conventional | Saf-T-Track |
|---|---|---|
| 2.56-1 | WBP | XBP |
| 2.78-1 | WCP | XCP |
| 3.07-1 | WTK | XIK |
| 3.08-1 | WEP | XEP |
| 3.23-1 | WFP | XFP |
| 3.31-1 | WUK | XUK |
| 3.55-1 | WHP, WVK | XHP, XVK |
| 3.90-1 | XPK | |
| 4.33-1 | XMP |
Ventura II
| Axle Ratio | Conventional | Saf-T-Track |
|---|---|---|
| 2.56-1 | GJW | GKW |
| 3.08-1 | GRW | GSW |
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.