GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2000 🢒 Blazer - 4WD 🢒 General Information 🢒 General Information 🢒 Front Axle Identification

Object Number: 376492 Size: SH
(1)Broadcast Code
(2)Supplier Code (G = American Axle)
(3)Julian Date (Day of Year)
(4)Shift Built (1 = First Shift; 2 = Second Shift) (Optional for 8.25" and 9.25" axles)
(5)Hour Built

Front axle identification information is stamped on the top of the differential carrier assembly.

The following broadcast codes identifies the axle ratio:

Broadcast Code

Ratio

ZTM

3.08

ZTN, ZTU, ZTW, ZSY, ZA2, ZC2

3.42

ZTP, ZTR, ZTS, ZTX, ZSZ, ZB2,ZD2

3.73

ZTT,ZF2

4.10

ZH2

4.56

The information on the differential carrier assembly is necessary for servicing.