How to Use the Color Key Colors are used throughout Manual Drive Trains and Axles to help illustrate different transmission, transaxle, and differential components. Color is also used to help clarify power fl ow. Th e following key shows what each color represents. Transmission, Transaxle, and Differential Components Gears, shaft s, and axles Clutch and related components, shift forks, shift rails, synchronizers, joints, and bearings Electronic control components (sensors solenoids, etc.) Case, housings, and oil pans General Illustrations Primary component or feature Secondary component or feature General components General components Power Flow Drive gear Driven gear Th e direction of power fl ow and the direction of force are indicated by red arrows. 4 Manual Drive Trains and Axles