Search for: Unit Q63-39 Most common starter for 3.8L FWD GM’s. Notice casting lobe on left solenoid mounting bolt. Also reduced bendix opening. Typical GM solenoid. Note marking on solenoid bell housing which means ” A thick shim is not necessary” $48.00 $30.00 core Your Name (required) Telephone number (required) For Unit Q63-39 Your Message