I am looking to put this kit as weel as new LED headlights on my 68 bronco. It has all original wiring, do I need to replace with new wiring for the LED exterior kit and headlights?<br>Thanks.

No, or not normally. The cluster bulbs are direct replacements for the originals. The exterior kit comes with one low voltage flasher for LED's, but a second may be needed. LED headlights are usually no problem.