Description
Billet Aluminum 8-Rib Underdrive Alternator Pulley for GM Engines. Underdrive Ratio for lower Alternator RPM when used with a larger, Overdrive diameter harmonic damper.
Technical Details
| Serpentine Rib Count | 8-Rib |
|---|---|
| Overall Diameter | 2.950" |
| Serpentine Rib Diameter | 2.800" |
| Shaft Size | 17mm (.669″) |
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