Originally Posted by justpoet

My spur also wobbled. I tightened up the side that wobbled towards the edge of the diff holder a bit to reduce the wobble, but ended up taking plastic out of the top as well. It hasn't been an issue with lining up the pinion though.

Originally Posted by jhautz

Mine was a little wobbly too. Once it was all mounted up it wasnt enough to rub on anything though.

Originally Posted by G SquareD

Two questions here during my build....

1) On the center diff. The spur is a bit unbalanced, once its mounted on the diff mounts, I spin it by hand and can see that it "wobbles" some. I caught this at first because I felt minor rubbing of the spur on the brace on the top. At first I dremmled the top brace, but then I realized that the spur has a "wobble" when it spins. I thought this might be linked to the screws holding in the spur being slightly tightened at different torque levels, so I made sure that I tighten them all the same (turning the screws in by hand, with approximately the same torque). But still have this wobble. Not sure if using a torque wrench type crew could fix this, or if the issue could be somewhere else in the diff. The diff gears turn smooth (for not having been broken in yet).