LS 3" OD Billet Overdrive Alternator Pulley 6 Rib 10-10042

Bolted right on all parts from package or exactly how described with the right shims no complaints. Need to order another for the backup alternator.

Worked out great to slow my alternator down a bit! It’s a little bit bigger than expected so I had to use an 800k6 belt with the high mount alternator bracket.

Fit Perfect. Even worked with the factory belt on my set up.