I have tried to do this mod to my 03 Z71 (using 3 diodes per side). The right side works fine. When I did the left side everything works well by itself, but if I use left turn and brake, the diode to the lower light (turn) gets REAL HOT and there is no flash turn (they freeze). I have changed diodes out and checked to make sure they are the right way. Any ideas before I switch to the relay method?