GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 1999 🢒 GMC C-Series Medium Duty Truck B7 🢒 General Information 🢒 General Information 🢒 Transmission Identification

Automatic

Allison® Model ID Locations
Object Number: 200588 Size: MF

Allison® transmission identification plates are located on the rear left side of the housing, just above the oil pan.

Manual

Eaton® Model FS ID
Object Number: 200589 Size: SF
(1)Synchronized
(2)x 100 = Nominal Torque Capacity
(3)Design Level
(4)Forward Speeds
(5)Ratio Set

Eaton® transmission identification plates are located on the right side and at the rear or front of the transmission housing:

Eaton® Model RT ID
Object Number: 200590 Size: SF
(1)Roadranger
(2)Twin Countershaft
(3)x 100 = Nominal Torque Capacity
(4)Multi-Mesh Gearing
(5)Forward Speeds
(6)Ratio Set

Dana/Spicer® ID
Object Number: 200591 Size: SF
(1)Ratio Design B
(2)Forward Speed
(3)Maximum Foot-Pounds of Torque
(4)Easy Shift Synchronized