LED lights need resistors right?

[Plum70Dodge]

I replaced everything with LED bulbs turns, tails, parking.

I have the A01 light package, but I have removed the fender turn indicators.
So I have these perfectly good leads hanging inside the fenders.
Can I wire a resistor from that lead direct to ground, or does it need a bulb in the path?
The reason for the resistor is the LED bulbs need some resistance. Instruction call for cutting the harness and installing the resistors at the park lights. But I wonder if I can simply use this handy lead that now has no other use.

[gzig5]

Normally resistors are placed in line with LEDs to limit the current flowing through the LED so it doesn't overheat, which also adjusted the light output intensity.  I'm not familiar with what you are working with, but unless you are using bulk LEDs, I would think that anything that fit a harness or socket would have the resistor integrated?

[tman]

NO resistor needed.  Just need LED flasher unit like this:

https://www.amazon.com/CEC-Industries-EF32RL-Flasher/dp/B00JXLH7CG

One for 4 way flash and one for turn signals.  On mine, I had to interchange the 2 terminals on the turn signal side.  Current flow is specific vs old where it does not matter.  Some have been successful just changing out the turn signal one only.  I had to do both. 

[dodj]

They do not need resistors. You will need to buy a flasher meant for leds if you want your signals to work though.  You are probably thinking of the need for resistors for HID lighting, not LED.

[Chryco Psycho]

The other factor is LED will ONLY light with correct polarity unlike incandescent bulbs