[madmaxx]

Gear didnt wear out it broke. The steel billet cams (which are cast iron with some alloys) are harder than the 99.9% cast iron. Used to have to use brass but now MSD has a steel gear to go with the billet steel cam. Prob is if you use the steel gear with a cast iron camshaft it eats the camshaft gear.

Kinda of confusing, they are both cast iron cams, one has alloys, ie chromium etc the other does not. The one you have to use a steel gear the other will destroy. Now some companys have come out with a gear that will work with either unless it breaks in half, LOL.