[jhautz]

Im wondering if the leaking you saw has possibly conaminated the slipper pads and is causing excessive slipping. I know on my 2 slipperential units I can easliy tighten it down to the point where it is basically locked up and only the very hardest of drivetrain jars would make it slip at all. I seem to get a nice range of adjustment in both my buggy and my truggy.

I would take the slipper unit apart and try cleaning the slipper pads and the friction plate to remove any silicon residue that may be there from the initial leaking.