Originally Posted by morgoth

@RC-knight: No the bladders are fine. With the old shocks, you could break the bladder when tightening the cap too much. With the alu shocks, it has a stop build in. Now you can't tighten it more then you should so you won't tear any bladders from tightening it too much. And the shock is more consistent too after rebuilds :-)
I'd go with 2000 oil in the geardiff as a starting point from medium grip carpet.