I'm thinking about installing a super diff into a swinger g/box. They normally come without spider gears and some say it is OK to use 2nd hand gears. Does anyone have experience with this? My feeling is, it would not be worth the effort installing a super-diff without all new gears (or at least gears worn exacly the same amount) for equal and even meshing. Any advice would be welcome.

It all depends on the condition of the gears...... gears are not the problem with standard diffs.

where abouts in Perth are you ? I can send you somewhere to help you out :thumb