Headlight question blinker problem

[Desertshark]

So I'll start with easy one. I am upgrading to some jw speaker head lights. My truck -lite less. Died on me. Question is on the h4 plug. Anyone know what number on truck is high and which is low beam? Second part.is my blinkers... they made a slow death now won't blink at all... I have installed a new 3 lever switch and blinker box. Tomorrow gonna replace all the bulbs..all of the connections have been cleaned and have new dielectric grease. Do the flash levers go out often?

 

[lindsey97]

Make sure your hood is grounded and the rest of the truck has good grounds. If you have bad grounds and install LED headlights, they will fail due to weak grounding.

 

[Desertshark]

Thanks! I'll redo and refresh all my grounds and give it another try!