stripped distributor gear
Next is proper placement. if the engine has been decked and such you will need to make sure the gear is meshing in the middle of the Distributor gear.
Try the Comp Cams Composit gear

Good luck!
comp cams doesn't make a composite gear that fits the LT1 shaft .425" (that i know of at least). i had to get the .500 composite gear and make a small brass sleeve to make it fit it was a real PITA but i has about 12,000 on it and no problems




