ok yesterday i tried to put my gear on where the crank end is and the collar nor the gear would fit like it was too small and the crank end was swollen. its a 3mm stroker idk if it was a manufacturing problem or my gears where made to fit stock crank ends. idk. i was bout to put the rubber mallet to it but i said i didnt wanna mess up any thing wat you guys think someone already told me to try to buy some oem gears and collars and see if that change anything idk. i wonder if anybody seen this before while rebuilding their engine.