Originally Posted by Granpa

Mike and I were talking about the TA03 ball diff and not the M05 ball diff you've been using. For the track conditions you run on, it might be better than the TA03 ball diff. But you'll have to admit that your circumstances are fairly unique in that few of us have a basement track of our own. The two diffs are entirely different and what applies to one, may not be applicable to the other.

The primary reason so many Mini racers use the TA03 ball diff is that it can be run much tighter than the M05 ball diff. The popularity of the after market gear diffs is that they can be run tighter than the 05 diff. The weakness of the 05 diff is that for some reason grit can work into the thrust bearing quickly so that the diff isn't smooth as when first assembled. This does require fairly frequent rebuilds. You may not have run into this phenomenon, due to your unique circumstances. However, the 05 diff is a very good unit if you don't mind the maintenance issues and run the diff fairly loose.

By the way no one is questioning your R/C credentials and experience or your obvious talent. Mike is running a TA03 ball diff and seems to have had a similar experience with the 05 ball diff that many of us have had. And that is the diff screw snapping when you try to run a tight diff. If I'm not mistaken , he also has to support his sons racing so running out and buying several 05 diffs might not be a good option fr him.

We all wish the best for him and Gold Dust--do I have that right???--- so my option was to see if we could make what he was using work better.