MSD Magnetic Trigger Installations or Current Triggered Tachometers 8920 1963-gmc-pb1500-series-esi4984319 Sprags are a one-way clutch

Sprags are a one-way clutch device used to transfer power through the transmission

621 184 2 5944 V-Belt 255 0 9510 1 Description_ABR Alternator Description_SHO Black Alternator Description_INV Black Alternator Description_INV New Description_INV 1-Wire Description_INV 120 Amp Description_DEF Alternator Description_ASC Alternator Description_ASC 120 AMP Description_ASC GM 1-Wire Style Description_ASC V-Belt Pulley Description_ASC Black Crinkle Description_ASC 100% New Description_LAB Alternator Description_LAB 120 AMP Description_LAB GM 1-Wire Style Description_LAB V-Belt Pulley Description_LAB Black Crinkle Description_LAB 100% New Description_DES Alternator Description_DES 120 AMP Description_DES GM 1-Wire Style Description_DES V-Belt Pulley Description_DES Black Crinkle Description_DES 100% New Description_EXT Alternator Description_EXT 120 AMP Description_EXT GM 10si 1-Wire Style With Int

A-body chassis only — confirm your vehicle is on the A-body chassis before ordering

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3L EcoBoost Turbos

MSD Magnetic Trigger Installations or Current Triggered Tachometers 8920 1963-gmc-pb1500-series-esi4984319 Sprags are a one-way clutchIf you are using the magnetic pickup input (green and violet wires) to trigger your MSD Ignition, you will need the PN 8920 Tach Adapter. The PN 8920 will correct the operation of most voltage triggered tachometers that do not work directly off the tach output terminal of the MSD control. This Adapter should also be used on current triggered tachs (hooked in series with the ignition switch). MSD Magnetic Trigger Installations or Current Triggered