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I have a small oil leak from 1 of the 3 allen socket plugs ( top plug ) on the oil filter housing on my 2004 LB7. I am going to remove the plug and hopefully teflon tape it and be done. My ? does anyone know if there is anything behind these plugs, ( Springs, rods, ball bearings ) don't need something shooting out and be lost. Any one with knowledge with the housing ? Thanks