Originally Posted by
Chris Jarosz
It's always a possibility that overfilling the diffs can cause leakage, but there are other things that can cause it. The oring could be bad, installed incorrectly, there might not be black grease on the outdrive, etc. One of the biggest questions I have for people who are saying their diffs are leaky, is how long are you waiting between diff rebuilds? If you are waiting a month, then yeah they are gonna leak. If it is only one race night, then something isn't right.
You actually can buy the orings separately, along with the diff gasket. The part number is 9831, from the SC10 2wd kit.
I would recommend taking your diffs apart and put some black grease on the outdrive/oring and see what that does. If you still have problems, email me and I will see what I can do for you.
I'm not getting more than one race day. then I'm rebuilding constantly and using up all my diff oils.
I'll give it one more shot with some black grease.
As far as the slipper goes. these cars don't snap around like a center diff car. I have high torque pads, vented disc, and small pinion on a big 550 motor and i have to sand slipper pads before my mains it slips so much. slipper nut is fully compressed. i want to pin the thing so bad.