GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2005 🢒 Chevy C Cab/Chassis HD (GMT 400) 🢒 General Information 🢒 General Information 🢒 Transmission ID and VIN Derivative Location

The transmission model identification is located on a label or tag on the transmission case. If this label is missing or unreadable, use the service parts identification label in order to identify the vehicle's transmission.

Figure 1:
Object Number: 349746 Size: SF
(1)Calendar Year
(2)Julian Date of the Year
(3)Shift and Line Number
(4)Plant
(5)Model
(6)Location on Transmission
Figure 2:

New Venture Transmission
Object Number: 423030 Size: SF