Light Duty Truck Four Wheel Drive Front Axle Identification

Chevrolet Light Duty Trucks use either Chevrolet or Dana produced front axle assemblies. Production code explanations are similar to those covered under rear axle identification.


CHEVROLET AXLES

Code is stamped on top rear section of left axle tube. (Includes axle ratio code.)


DANA AXLES

Code is stamped on forward side of left axle tube. Axle ratio code on tape strip around right axle tube.
1985 "K" 10-30 FRONT AXLE IDENTIFICATION


AXLE CODE
MANUAL AUTO.
HUB HUB AXLE BRAKE GEAR AXLE
MODEL LOCKS LOCKS RATIO SYSTEM DIA. RATING AXLE MFR.

K100 GPR GPP 2.73 JB/D5 8.5 3600 DETROIT G & A
GPT GPS 3.08
GRD GRB 3.42
GRS GRP 3.73

K200 GPY GPX 3.23 JB/D6 3800
GRF GRC 3.42
GRT GRR 3.73
GRY GRX 4.10

K200 HD GPW GPU 3.23 JB/D7
GRA GPZ 3.42
GRN GRG 3.73
GRW GRU 4.10

K300 TBA 3.73 JB/D8 9.75 4500 DANA
SINGLE TCA 4.10
WHEEL TDA 4.56

K300 TBB 3.73
DUAL TCB 4.10
WHEEL TDB 4.56

*K300 ASSEMBLIES DO NOT INCLUDE HUB LOCKS.
"T" 10 FRONT AXLE IDENTIFICATION


MODEL AXLE CODE AXLE RATIO GEAR DIA. AXLE MFG.

T100 GBD 3.42 7.25 DETROIT G & A
GBF 3.73
GBG 4.11