[littlened]

I've just received the steel diff shafts and shims this morning, just waiting for the diff plates and the one way shaft (LA223).

A couple of questions...

What is the one way shaft? They look so small on the exploded view, but I've ordered them because they appear on the SP exploded view but not the ZX-5.

The other question is, because I have the RTR and the parts are of a lesser quality, should I also order new gear set (la200), ball bearings (ul120) and new sets of bearings for the front and rear gearboxes(brg014)? Will these parts be better quality than the parts already fitted, or are they the same parts? The part numbers are the same, I'm just worried about the quality.

If it's recommended that I replace the bearings, is it worth getting the bear sets you see by 3Racing? or should I just order the Kyosho bearings?

My main aim is to replace the plastic diff shafts with metal ones, but while I've got the gearboxes apart I might as well replace anything in there that could be better quality.

Ta