1972 Axle Ratio Codes

1969 Chevrolet Brookwood 5.3L Eng, Automatic Trans, Trans Mfr CD PowerglideSECTION 1972 Axle Ratio Codes
Buick

Axle Ratio Conventional Positive Traction
2.56-1(1)(6) LKB LTB
2.73-1 (1)(6) LLB, NKB, NKO LOB, NTB
3.08-1 (1)(6) LAB, NAB, NAO LSB, NPB
3.42-1 (1)(6) LHB, NHB, NHO LWB, NSB, NSO
2.73-1 (1)(7) NKC, NKK NTC, NTK
3.08-1 (1)(7) NAC, NAK NPC, NPK
2.73-1 (2)(6) QPO QSO
2.93=1 (2)(6) QIO, QEO QJO, QLO
3.42=1 (2)(6) QTO, QHO QAO, QMO
Pontiac 
2.56-1 (3)(6) WBP XBP
2.78-1 (3)(6) WCP XCP
3.08-1 (3)(6) WEP, AEP XEP, BEP
3.23-1 (3)(6) WFP, AFP XFP, BFP
3.55-1 (3)(6) WHP XHP
2.73-1 (1)(6) NKB, NKO NTB, NTO
2.73-1 (1)(7) GZG, NKG, NKK, CAG, NTG, NTK
  JBG, JGG JNG, JYG
3.08-1 (1)(7) GXG, JCG, NAG GYG, JOG, NPG
  JIG, NAK, NAB, NAO JWG, NPK, NPB, NPO
3.23-1 (1)(7) NJG, NJK, NJB, NRG, NRK, NRB
  NJO NRO
3.42-1 (1)(7) CLG CMG
3.73-1 (1)(7)   CGG
2.56-1 (4)(7) UCP, UCM VCP, VCM
2.73-1 (4)(7) UDP, UDM, YDP VDP, VDM, ZDP
3.08-1 (4)(7) UFP, UFM, YFP, VFP, VFM, ZFP
  WPP XJP
3.07-1 (4)(7) WTK XTK
3.31-1 (4)(7) WUK XUK
3.42-1 (4)(7) YHP ZHP
3.23-1 (4)(7) UGP, UGM, YGP, VGP, VGM, XLP,
  WAP ZGP
3.55-1 (4)(7) WVK XVK
Oldsmobile (8)
2.73-1 (1)(6) SA, TA, NK SB, TB
3.08-1 (1)(6) SC, SM, NA SD, SN
3.23-1 (1)(6) SR, TG SS, TH
3.42-1 (1)(6)   TM
3.73-1 (1)(6)   TO
2.73-1 (2)(7) QP QS
2.93-1 (2)(7) QI, QG, QE, QU QJ, QL, QV
3.23-1 (2)(7) RA, RB RC, RD
Chevrolet (8)
2.73-1 (7) UD, YD ZD, YD
3.08-1 (7) UF, YF, WP VF, ZF
3.42-1 (7) UH, YH, X3 VH, ZH
Chevelle (8)
2.73-1 (7) GC, GI, GH GD, GH
3.08-1 (7) GF, GN  
3.31-1 (7) CW, RU RV
3.36-1 (7) GG Gl
4.10-1 (7) RW  
Nova (8)
2.73-1 (1)(7) PWG, JBG PXG, JNG
3.08-1 (1)(7) JCG, JIG JWG, JQG
3.36-1 (1)(7) GTG  
3.42-1 (1)(7) JEG, JKG JSG, JYG
Camaro 
2.73-1 (1)(7) GZG CAG
3.08-1 (1)(7) GXG GYG
3.42-1 (1)(7) CKG CJG
3.73-1 (1)(7) CGG  
4.10-1 (1)(7) CBG  
Corvette (8)
3.36-1 (4)(7)   AX, LR
3.55-1 (4)(7)   AA
3.70-1 (4)(7)   AB
4.11-1 (4)(7)   AC
Vega (8)
2.53-1 (5)(7) HB HG
2.92-1(5)(7) HA HD, HJ
3.36-1 (5)(7) HC HH
(1) 8 1/2" Ring Gear.
(2) 9 3/8" Ring Gear.
(3) 8 1/8" Ring Gear.
(4) 8 7/8" Ring Gear.
(5) 6/2" Ring Gear.
(6) Non C-lock type.
(7) C-lock type.
(8) The third letter of axle code is manufacture code. Axles with letters "B" & "O" do not have C-locks. Axles with other letters have C-locks.
RENDER: 1.0x

NO RELATED

Recommended Tools & Savings

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Affiliate disclosure: We may earn a commission at no extra cost to you.

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.