When should I replace my distributor gear? The street stroker build is almost 2 years old and has 1900 miles. I have included a picture of the gear compared to a new gear. There is some wear on the teeth and also on the bottom wear it rides on the distributor bushing. Should I be replacing this? How many miles should I expect to get on a new gear. Oil is 15W50 and stock volume high pressure oil pump.