While Im thinkin about it, I have the ebay created GMT800 tow mirrors on my truck, I love them, but, I have two issues with them, even with the supplied stiffener brackets the mirrors still shake horribly goin down the road, and, the lower half of the signal LED's on both sides (mine are both signal and markers) are burned out. Is there any way to stop the mirror shake? If I hold the mirror assembly with my hand under tension goin down the road the shake stops...wonder if the pivot is the issue? any ideas? I know the glass itself shakes within the housing too because lets face it, even for 300 bucks, theyre still cheap copy aftermarket stuff.