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For GM LS Engine Timing Camshaft Sprocket Cam Gear 3 Bolt 4x 12586481For GM LS Engine Timing Camshaft Sprocket Cam Gear 3 Bolt 4x 12586481This 3 Bolt 4x timing chain gear is used when converting from a 1 bolt camshaft to 3 bolt camshaft.This cam gear is used in late model combos that are being swapped from the single-bolt cam to the older three-bolt cam design. This gear mounts to the camshaft via 3 three bolts and has the 4X reluctor (4 raised portions for cam position sensor to read)Fitment:20...

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