Chevrolet Parts Diagram The Chevrolet Parts Diagram is a factory-accurate OEM reference that provides mechanics and vehicle owners with detailed schematics of Genuine Chevrolet components.. This document provides a diagram and component list for a GM 4-speed automatic transmission, either a 4T40E or 4T45E. The diagram shows the transmission components arranged in sections A through E. Over 100 individual components are labeled, including clutches, bands, planetary gear sets, shafts, and valves that make up the transmission.
AUTOMATIC TRANSMISSION ELECTRONIC COMPONENT VIEWS Fig. 16: Electronic Components Component View. General Motors (GM) is an American car designing and manufacturing company. It manufactures its own automobile transmissions and only occasionally purchases transmissions from outside suppliers as needed. GM transmissions are used in passenger cars and SUVs, or in light commercial vehicles such as vans and light trucks. While there is much variation within each type, in a very general sense.