Changing to LED's is a very good option..
Flashers come in 3 types now days
One is a special "Module" that only fits your truck and alas if you have those you are in tribble, I can fix but your are in tribble.
The second is either a 2 or 3 wire flasher that is specific to the number of tail lights you have..
The third is the HD, 2 or 10, makes no difference, it works. IN fact it will work with just one lamp.. This is the one you want.
How to tell them apart. If you turn the signals on and the light comes on RIGHT NOW, you have the WRONG type of flasher
If you turn it on and the light comes on about a quarter to half second later
You have the RIGHT kind of flasher.
NOTE: This assumes an old mechanical flasher,, Modern solid state ones that will not apply.
IF you want to know why.. Ask.
