Hey all,just signed up.I'm seeing a weekness in the tranfer cases.i have an 02 Duramax.The pump on the inside is torquing wearing a hole in the case.When this occurs fluid leaks out and burns the clutches for the 4x4.If your not using the 4x4 you may not notice this problem.The holes occur at the rear cone on the right side of your filler plug along the side.$3500.00 re & re ouch.I'm seeing the same results in other cases.If you keep your fluid up you may save the interior.