TFG,

I have built the TAO3 ball diff stock standard, however I still have stripped the spline in the diff. I think as I said it is because the O ring compresses and allows the universal to not put as much pressure on the diff cup, which allows it to semi move out of the spline. With the BL system that spline gets chewed out quickly.

It is a shame that the quality of some of the components in the new Tamiya Ball diff is not up to their usual standards. As I stated since using the red gel loctite I have not had the diff come loose. I did hit a couple of domes last night at full noise and the diff is still the same.

Anyway good luck with your cars and I'll see some of you when I get back.

Regards,

Calvin.