Hey guys I have a small leak in the Diff and Im going to get it fixed. I was wondering what is the best Oil for it? and What did you guys use (sealant, caulking, etc) to have it not leak anymore. Did you use the standard gasket from NAPA or Autozone? Hans says he uses some kind of Caulking. I would like to know so I can repair it tomorrow afternoon. I hear Cobras tend to have this problem. This might be due to no IRS brace installed but, I have the Brace and waiting to put it in.