Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

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Transmission Identification Information



Transmission Identification Information

Toledo Build




1 - 7 = 2007
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

Ramos Arizpe, Mexico




1 - 7 = 2007
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

Bar Code Label Contents




1 - 7 = 2007
2 - Model
3 - Hydra-Matic 4L60-E
4 - Transmission Asm. as Shipped Number
5 - 7 = 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, 4 = Ramos Arizpe, Mexico