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We are privately owned, with access to a professional Diesel Mechanic, who can provide additional support for Dodge Ram Cummins Diesel vehicles. Many detailed information is FREE and available to read. However, in order to interact directly with our Diesel Mechanic, Michael, by phone, via zoom, or as the web-based option, Subscription Plans are offered that will enable these and other features.  Go to the Subscription Page and Select a desired plan. At any time you wish to cancel the Subscription, click Subscription Page, select the 'Cancel' button, and it will be canceled. For your convenience, all subscriptions are on auto-renewal.

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So, my driver's side headlight is ok. well, as good as expected from the non-sport housings..

My passenger's side headlight, however, is PERFECT...

... for coon hunting, or anything else that is NOT on the road in front of you.

It shines light everywhere but on the street.. It's not a dull lens, it's not out of alignment (per little headlight aligner dooka-ma-hitchie at the service joint..

It just refracts light, completely oblivious to anything resembling 'focused'.

I'm gonna go out on a limb, and try swapping bulbs left/right to see if that does anything (doubtful) but it totally sucks to drive in the dark hours..

I'll try to get a picture tonight of the light pattern, so y'all can see I'm not completely crazy..

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Bear with me for a second. Light from your filament, no matter how high or low tech it is... must hit the reflector & go out through the lens. If the bulb is out of spec... filament not positioned right in relation to the base where it aligns... then the light source will be positioned wrong & the light output will be aimed wrong. So I think you are on the right track. The bulb is out of spec for some reason. Either a defective bulb (just because it lights does not mean it's positioned correctly) or a improper mounting.

Flagman is right on. Filament in the wrong place will throw all beam focus out of whack. I wonder if the lock ring wasn't tight and the bulb came out the back? I melted a housing that way once.

  • Owner

I always self adjust my light on a empty road and make sure my lights are aimed for the bulbs not a goofy tool. So when I'm done the low beam reach out a long ways but never hit road reflectors nor taillight reflectors. I typically cover one side and adjust the other.

  • Author

OK sorry but my tractor is in front on the truck. But, on the left, you can see the drivers head light's beam clearly. The right one, however, is all over the freaking place. The bulb is seated in the housing and lock ring is in place. I couldn't get my fat hand in there to pull the bulb though..[ATTACH]4764[/ATTACH] The truck is about 15-20' from the garage door. Sent from my SPH-L710 using Tapatalk 2

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Mike has a good point. I haven't needed to in a while but I used to run off road lights & the state inspectors would often frig them up trying to use a tool to adjust. I used the brick wall at the school yard, a yardstick & a coat or something to cover them. I measured the center of the light & backed up. The low beams should focus below the lamp center (I forget the distance). In other words, low beams need to be aimed slightly down. The aiming proceedure is still the same. Shine each beam on a wall & be sure it focuses. Then cover one at a time & adjust the other.

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If you look at the picture, there's no amount of adjustment to correct that. HahaSent from my SPH-L710 using Tapatalk 2

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I almost bought them yesterday, but choked a little at $40/pr..

I'll be interested in what you find when you get the bulb out. I have to go look at mine to see what is required.

  • Author

So I just went outside (I'm at work) for a short smoke break, and decided I'd take a peek at the headlight..Turns out (hopefully it's now fixed) that the moronic previous owner put the headlight bulb in wrong..I turned the lock collar and it wasn't "locked" in place. But it was kinda stuck to the bulb, so I pulled the bulb out, too..Looking at it (I wish I had my phone with me so I could've taken a picture, but he has the collar on backwards, and the bulb was forced into the housing. After about 5 minutes of fighting to separate the collar and bulb, I finally got it apart, and got the bulb back into the housing correctly. Then I had to use a pocket knife and fix a couple of plastic burrs on the collar to get it to seat properly.It's now all back together, so I'll check it out tonight, when it gets dark.:banghead:Just another FUBAR with this truck and it's previous owner's lack of know-how...

It makes sense. Glad you were able to save the bulb. :)

  • Author

Guess it all depends on how bad you want it to go in.. (hush, dorkweed) lolSent from my SPH-L710 using Tapatalk 2

  • Author

well its better... but still sucks. [ATTACH]4765[/ATTACH]Sent from my SPH-L710 using Tapatalk 2

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Is it the right bulb for your application? A wrong bulb could be out of spec. Is bulb seated correctly now? Is the bulb or mount damaged?

  • Author

Its the correct bulb and not damaged. I may buy a set of inexpensive replacement bulbs to test before I drop $40 on a good pair. Sent from my SPH-L710 using Tapatalk 2

Without touching the glass (of course), I'd love to see the old & new bulbs side by side. Take a good look at the filament placement. My chart says a 9004 bulb.

  • Author

Will do. Sent from my SPH-L710 using Tapatalk 2

  • Author

It's definitely the correct bulbs (9004).I bought a new set of Sylvania Ultras yesterday, but it was dark by the time I got home. Maybe, if I get home before dark tonight, I'll swap them and get you a comparison picture of the bulb(s) and the lighting output. I want to (at the same time) add relays for the headlights, if I get the chance, but I've got to pick up more wire to do that..

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Welcome To Mopar1973Man.Com LLC

We are privately owned, with access to a professional Diesel Mechanic, who can provide additional support for Dodge Ram Cummins Diesel vehicles. Many detailed information is FREE and available to read. However, in order to interact directly with our Diesel Mechanic, Michael, by phone, via zoom, or as the web-based option, Subscription Plans are offered that will enable these and other features.  Go to the Subscription Page and Select a desired plan. At any time you wish to cancel the Subscription, click Subscription Page, select the 'Cancel' button, and it will be canceled. For your convenience, all subscriptions are on auto-renewal.