I installed a new crank gear but i do not know if its on all the way. Its very hard to see behind it to see if i have it on all the way. I have the key just past flush on the gear. And damn was it a pain in the *** to install. I heated it in a pizza oven and got it to 400 degrees but it cooled down fast so i kept it hot with a torch..

I used the old gear to press it on. I took a plate and drilled the same holes in it that are on the crank for the harmonic balancer so i used longer bolts in the crank and used it like a press....

Btw its on a 2005