Blown_Red_97z

I just finished replacing the yoke/pinion seal on my car and was wondering how tight the bolt should be that holds the yoke on. I noticed that it was only on there a few threads before I took it off, and put it back on at about the same place, but the bolt it pretty loose, it could be tightened a lot more. Should I tighten it down? I am pretty sure if its too tight, it will crush one of the seals in the rear itself. Anyone done this before??

Z28Nut

If you over tighten the nut it will crush the crush collar or sleeve on the pinion shaft that is very important to you gear set-up. I have a solid spacer so it's not as critical but the crush collar is torqued tight enough to get a specific amout of turning torque on the pinion shaft -- ~10 inch/lbs for used bearings and somewhat more for new pinion bearings. Try a search for 'pinion seal' or 'pinion yoke', thats how I found the specs. Double check the 10 in/lbs, I'm old and my memory ain't so good.