Used GM timing gear. This is for the camshaft only.  This is a stock replacement gear. This is known as the "pin drive" set (vented Optispark).  Fits the following:

95-96 LT1 Corvette
95-97 LT1 V8 Camaro
95-97 LT1 V8 Trans Am

NOTE : For vented Optisparks only!  Not for LT4!

The item in the photo is the exact item being sold.