I need help for a question about driving in new bearings. The question is how far do I drive the bearings in on both wheels? On the rear I drove them in so far that they are hitting the spacer making both bearings to spin together. I assume this is bad In the front that doesn't seem to be happening but then again I may not be in all the way. Basically, I want to know a tip or maybe a measurement for how to tell how far the bearings are in. Thanks in advance.