Transmission Identification Information

WARNING: This page is about a different variant/trim than selected.

Fig 1: Toledo or Romulus Build

Courtesy of GENERAL MOTORS CORP.

Callouts For Fig 1

Callout	Component Name
1	6 = 2006
2	Model
3	Hydra-Matic 4L60-E
4	Julian Date or Day of the Year
5	Shift Built, See Shift Build Chart
6	Serial Number
7	Case/Pan Frame Rail Location
7	Case/Pan Frame Rail Location
8	Optional Transmission ID Location, Tag is Used as a Back-up if Unable to Etch Case/Pan Area and to Bar Code Scan

Fig 2: Ramos Arizpe, Mexico

Courtesy of GENERAL MOTORS CORP.

Callouts For Fig 2

Callout	Component Name
1	6 = 2006
2	Model
3	Hydra-Matic 4L60-E
4	Plant of Manufacture, 4 is Ramos
5	Julian Date or Day of the Year
6	Shift Built, See Shift Build Chart
7	Transmission Serial Number
8	Optional Transmission ID Tag Location, Tag is Used as a Back-up if Unable to Etch Case/Pan Area and to Bar Code Scan
9	Case/Pan Frame Rail Area
9	Case/Pan Frame Rail Area

Fig 3: Bar Code Label Contents

Courtesy of GENERAL MOTORS CORP.

Callouts For Fig 3

Callout	Component Name
1	6 = 2006
2	Model
3	Hydra-Matic 4L60-E
4	Transmission Asm. as Shipped Number
5	6 = Model Year
6	Julian Date or Day of the Year
7	Letter After Julian Date Identifies the Plant Shift Build, See Shift Build Chart
8	Bar Code
9	Serial Number
10	Broadcast Code
11	Transmission ID
12	Build Location Y = Toledo, OH, R = Romulus, MI, 4 = Ramos Arizpe, Mexico

Plant and Shift Build Chart

Plant	Build Line	1st Shift	2nd Shift	3rd Shift
Toledo, OH	ML1	J	W	X
	ML2	A	C	Not Used
	ML3	B	H	Not Used
	ML4	S	L	V
	ML5	K	E	Z
Romulus, MI	1	A	-	B
Ramos Arizpe, Mexico	1	A	-	-