Since the gear costs $23.00 And the machine shop where wants about $20.00 I'll just take the distributor off and take the core to the parts store I'll be outta pocket about 10 more than buying a gear and distributor but I'll have the right gear and a fresh distributor even though the one thats on now is pretty new. I diffently don't want the machine shop to screw up on the gear. If wish I still lived in GA I know people do most car stuff cheap and get it done right people here are like highschool shop students.