1974-1978 GMC G25 L6 4.8L 12si High Output Alternator Pulley:V-Belt Pulley This is a direct fit

This is a direct fit high-output alternator for the 1973-1974 Chevrolet Blazer 4

This is a direct fit high-output alternator for the 2000-2002 GMC Yukon XL 1500 5

it's really going to depend on what mods you're going to do to

This is a direct fit high-output alternator for the 1996-1997 Chevrolet Cavalier 2

1974-1978 GMC G25 L6 4.8L 12si High Output Alternator Pulley:V-Belt Pulley This is a direct fitFitment: This is a direct fit high output alternator for the 1974 1978 GMC G25 4. 8L. Being a direct fit, this alternator fits directly into your stock alternator location. Plug: This high output alternator comes with a separate adaptor plug. One side will plug directly into the aftermarket high output alternator, and the other side will plug into the factory plug. NOTE: If you require charging at a certain voltage setpoint, we offer a selection of