Installing LED headlights, taillights, and front turn signals requires nothing more than replacing your flasher relay in the steering column with an LED flasher relay.
However, to use LEDs in the front fender side-markers, you'll run into issues. The side-markers ground through the unused filament on the front fender bulbs, and if the resistance is too high in the front fender bulbs, as is with a light emitting diode, the side-markers will not light, and the front LEDs May light inappropriately.
In order to get LEDs in both, you need to convert the fender flare sockets into a 3-wire setup using standard diodes and dimming resistors.
It can also be done with load resistors, but load resistors will waste energy and are more finicky
Here is a crappy guide to a 3-wire setup:
View attachment 142439
Buy a set of 1 watt resistors and fine tune the low brightness using the resistor. You want a brightness that is bright enough yet contrasts with the high brightness for the turn signal. I think I used 350 ohm resistors in mine.
It will simply alternate low/high brightness when the turn signals and parking lights are on, and low when only parking lights are on.
No changes are needed to the front fender sockets if this wiring is followed for the fender flare sidemarkers.