Laecaon, I was actually able to keep the collar on the 1st axle... I have even touch the other side yet lol. I trying to do it one side at a time. Autozone is exactly where I got mine from online. In the event I can not get the other collar of where do I get one. The problem still remains it slide down far enough :).. I'll try to flip around the bearing and see if that makes a difference. Both sides seem to be the same to me I don't see much of a difference from one to the other.