It's one tooth less compared to the 4.1 diff, 1 more on the pinion. Shouldn't make that much of a difference in sloppiness.

Oh well, we all knew you had a sloppy rear end though.

 

That is how much my drive shaft can move when in neutral with the car off.

 

I would say they both look a litte too much, but I wouldn't really be sweating it, either.

 

That looks like too much. That would be backlash and the spec is A LOT less than that. Even if there is some extra movement inside the diff going out to the wheels. Last time I set preload and backlash I had way less than that, can't remember the spec but should be very little play. Is it possible that the tabs got loose allowing the backlash ring things to back out a bit?

Shuiends looks a lot closer.

 

bad lash adjustment

 

Just use your manquads and push it out in neutral. Plus it is racecar why you care about reverse noise.

Personally i think you should drain your dif juice. There may be a chunk o metal in there.

 

needs moooaarrr rear caster

 

This is my new official troll post.