Originally Posted by Wade....

I have been having issues during my build regarding the transmission output shaft binding and the top cases not sitting right on my TB04pro II build. Basically the same ones already mentioned earlier in this thread by others.

It seems all of it is due to poor top case plastics not fitting right on the thinner of the two 10mm bearings on the output shafts. A touch of a grind with my dremel and everything is dare I say... 'free'. I hardly removed any material, but it made a world of difference.