Which ones have you tried? My truck is an 08. I have not done my taillights yet and these http://www.v-leds.com/Exterior-LED/B...-p7470633.html are the ones I will eventually get. After I tinted my tails I bought a set of led tail bulbs from Advance and they worked except for the hyperflashing. I took them out because this was before I had the new flasher. I will go out and try them again now. I don't know what you're saying about the CK socket but the bulbs are just regular 4057 bulbs.

 

My led tails worked fine now and they flash correctly. These are the $15 ones so they are dim and cheap but slightly more visible than my stock bulbs. Let me know what your issues with your bulbs were and we'll go from there.