Some side notes: don't use a metal hammer to bang this into the cases. Freeze this item in a bag for a day then slide this into the cases then use the tusk crank puller to install this. You can use the tusk crank puller inner piece to slide of threads and hammer this in if it gets stuck. Also, remember to use the nut with the puller and put on top of threads before hammering into crank.. i had to buy two cranks, lessons learned 😁