1970 Pontiac GTO, LeMans, Tempest Wiring Diagram Manual The schematic measures 8.5" x 11" and has 4 pages, and is in brand new condition. The picture is an example of a wiring diagram, but is not the exact diagram for this vehicle. The manual covers 1970 Pontiac GTO, Le Mans Sport, Le Mans, and Tempest. Buy now for the best electrical repair info—the factory wiring diagram. 1970 Gto Wiring Diagram - ImageResizerTool You almost certainly know already that 1970 gto wiring diagram has become the top topics over the internet nowadays. Depending on the details we had from google adwords, 1970 gto wiring diagram has very much search in google web engine.