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Lose your instructions? No problem! Instructions are available here: Gen 3 (24x) LS Engines Gen 3 LS-24x with automatic transmission (drive by cable) Gen 3 LS-24x with manual transmission (drive by cable) Gen 3 LS-24x with automatic transmission (drive by wire) Gen 3 LS-24x with manual transmission (drive by wire) Brake Switch Wiring (AC Delco D850A) Gen 4 (58x) LS Engines Gen 4 LS-58x with 4L60E/4L80E transmission Gen 4 LS-58x with 6L80/6L90 transmission Gen 4 LS-58x with manual transmission Gen 5 (58x) LT Engines Gen 5 LT with 6L80/90-8L90 transmission (Fuel Pump Relay Setup) Gen 5 LT with 6L80/90-8L90 transmission (FPCM Setup) Fan Relay Wiring Diagram A/C Wiring Diagram LED Brake Light Wiring Diagram (Gen IV & V) 6L80/6L90 TCM Removal 6L80/6L90 Tap Shift Info 6L80 / 8L90 / 10L90 Identification Gen 5 Inline Fuel Pressure Sensor Options