I am trying to determine if my original spindles are still good or should be replaced. I am rebuilding my front suspension and have everything apart right now. This is a first time suspension rebuild project for me.........I am including a link with some pictures. There is some discoloration where the inner bearing rides on the shaft. The discoloration is not as dark as it looks in the pictures. I went over the discolored area with some 0000 steel wool and WD40 but it made no difference. It seems to be permanent. I have tried to show all 360 degrees of the shaft in the pictures. If you run your fingernail on the shaft where the inner bearind rides, the surface is smooth. If you run your fingernail on the shaft in front of or behind the surface where the inner bearing rides, you can feel very small machining ridges or grooves....... Are there specs posted anywhere that you can check for with a micrometer?
And now to ask what may seem like a silly question. WHere the inner race of the wheel bearings ride on the spindle shaft, is that inner race suppose to stay stationary or spin?