Billet 6061 T6 aluminum.
Replaces ONLY GM 125568997 This is not an underdrive pulley.
Not recommended for re-installations. Use proper installation tools.
Pulley has a press-on fit. Same as stock size. Size: 6 11/16"

DOES NOT FIT F-Body. We are currently manufacturing LS2 F-body/GTO pullleys.