i went to an electrical shop and try to find 50w resistors like the ones that sells on eBay but only found 25w so i got 2 resistorfor each lamp they cst $1.75 ea so I got 4, 2 for each side lamp (only rear lamps)
I install them I just put on one side on each cable (1 on positive and 1 on ground) and the blinkers now works fine.
but now both of lamps have some dead bulbs inside. I think it damage when i try to used withouth the resistor(the bulbs {few only}). i will post a video so you can see !!
The video is on you tube !
http://www.youtube.com/watch?v=HQ39kmwFAKU (http://www.youtube.com/watch?v=HQ39kmwFAKU)
Hey Man your video ROCKS!! i'm going to do the same thing TODAY!! and see if it helps my "ALL BLINKERS BLINKING" situation O0
Were the led's blown before?
Inline resistors can be a real pita. They get so hot that they can actually start a fire. You should be able to get a heavy duty / no load electronic flasher from an auto parts store for only a couple bucks more.
I've got a load balancer if any one needs one! I had LEDs all around but TBH they were a PITA always blew my turn signal indicator lamp. It took me forever to get everything working with the load balancers, diodes, and resistors.
I just went integrated mirror/signal and some small bulb signals on the back.
Mary
Your dead LEDs have not been caused by using or not using the resistors. Just bad quality LEDS.