Losi XXX-CR Diff

[Wacker 2]

I've not long changed from associated B4 conversion kits to running a AC CR2 conversion kit... much much better performance and far happier with the CR2 kit but I've come to realise that the Losi diffs are pants!

Does anybody have any handy tips on how to make a losi XXX-CR diff feel smooth and work well???

I've tried new losi diff balls, new losi diff plates, new losi diff gear and new losi thrust race bearing... all in the hope that it will make the diff feel as good as the B4 ones did. But, to no success!

I am running schumacher diff grease for the main bearing and am using associated black grease for the thrust race.

Can anybody suggest any better greases to use that works well with the Losi diff???

Once built, it didn't feel too bad to start with (not a patch on the B4 diff tho) but after only 1 run it felt really notchy and gritty!

I also have quite a lot of float side to side when the diff is assembled into the gear box... approx 1-2mm... is this normal? are there any diff spacers that I can use to pack out this slop and stop the side to side movement once in the car?

Are there solutions to these problems... or do I just have to put up with it in order to have a great car to run?!

Any help would be grately appreciated

Thanks, Jon!