My dealer, Peoria Nissan in AZ didn't even question the Daystar lift. All I had to do is tell my service adviser I found the metal in the gear oil. I brought it in for him to see.

As Roger said, if all else fails, before calling in to NissanUSA, remove your aftermarket skids, etc. and take it in to a different dealer. You'll get it repaired under warranty unless you really did something to cause it, which is unlikely.

Keep us posted.