1963-1969 Chevrolet K10 Pickup L6 3.8L 12si High Output Alternator Pulley:V-Belt Pulley These all require more amperage

These all require more amperage than the stock alternator is capable of providing

As far as 2GA vs 4GA

Please note that this alternator does not reuse the factory Mopar alternator harness plug

This is a direct fit high-output alternator for the 2008-2009 Saab 9-7x 6

Our 315 basics fuse block is exactly what you need

1963-1969 Chevrolet K10 Pickup L6 3.8L 12si High Output Alternator Pulley:V-Belt Pulley These all require more amperageFitment: This is a direct fit high output alternator for the 1963 1969 Chevrolet K10 Pickup 3. 8L. Being a direct fit, this alternator fits directly into your stock alternator location. Plug: This high output alternator comes with a 14. 8 Volt GM Style Internal Regulator with one wire connection. This alternator is not plug and play and must be wired with the one wire connection. NOTE: If you require charging at a certain voltage setpoint, we offer a