How to: Build a great diff...

[Dudders]

Hi All,

Seems like this is a real dark art!, darker than speedo settings!!!

So, how do you get a lovely smoooooooth diff? When I build mine it's either lovely and smooth, but slips, or it feels like its built with crunchy nut cornflakes.

Do you sand your discs and replace balls every time?, is it the balls?

Fanx!