Stotadude
Active Member
I ground off as much plastic as I dared and the bulb assembly would still not go in far enough to allow twisting. Called DD and they are taking them back and issuing a refund. Good folks to deal with.
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Well that was pointless, I’ll make a video showing exactly your issue and how to fix it. Sad to say it’s just user errorI ground off as much plastic as I dared and the bulb assembly would still not go in far enough to allow twisting. Called DD and they are taking them back and issuing a refund. Good folks to deal with.
Looks great. And those are reflector low beams?
No need to make it now that you sent them back16Plati, I did what DD suggested to try and make the bulb assemblies lock in. I look forward to your video.


So I’ve had these several weeks now. I reported this issue to DD and they recommended a few things.
1) Bulbs fully seated?
Yes
2) LED chips are parallel?
Yes
3) Swapped bulbs from one housing to the next?
Yes
Result, same issue. So I guess it’s the OE housing causing this somehow?
Does anyone know if the Diode Dynamics HID kit would work in OE reflector housings and have a better pattern? I’ve emailed this info but no response yet. If I have time tomorrow I’m giving them a call.
High beams
Low beams
2017 XLT 4x4
That’s very odd...any chance there’s some broken glass from an old bulb or something in there? (Dumb question, but just a thought)
What happens if you put your standard halogen back in, is the hotspot and beam pattern correct?
I haven’t tried putting the old halogens back in since the swap but that’s next on my list. The pattern was fine before the swap, just halogen dim.
I have looked over the housings to see if I can find anything that looks damaged or abnormal. No debris or anything obvious to me. I’ve adjusted the aim multiple times as well while ensuring the housings are snugly back in place. It’s just weird.
I’ll post up anything I learn as I go through it all. Thanks for the suggestion!
2017 XLT 4x4
Yes, I’ll be curious to know the outcome.
Here’s a thought...with the LEDs installed, turn the lights on at night against your garage (or wall). Then go to the passenger side and pull the light out far enough that you can get your hand behind it or put it on a step stool, stack of boxes, whatever...that’s somewhat close to the height of where it typically sits in the truck.
Then stand to the side so the light still hits the wall and twist the bulb out of the housing, but leave it inside the light. Then twist the bulb freely in all possible degrees and see if the light pattern gets better.
I have a wild idea that maybe someone at the factory didn’t attach the “bulb holder” assembly to your light properly...and that the bulb on the right side sits at a different angle than the left side. With halogen bulbs, you’d never notice the difference since the light is omnidirectional.
If that’s not the case and you can’t get the beam pattern to look right no matter what angle the LED sits in, HID is your next best bet. Like halogen bulbs, HIDs are omnidirectional...minus the grounding strap.