I was having trouble installing the pinion back into the housing by myself so I made a tool that presses the pinion in place from the rear. With the pinion held in place I was able to tap the front bearing on and then tighten the nut on the yoke. I talked to a buddy who does rearends on a regular basis and he said he just has his helper hold the pinion so he can get the front bearing tapped into place. Strange Engr recommends polishing the pinion shaft so the front bearing slides on but I didn't have the tools to do that.