5th Gen Tail Lights in 4th Gen?

Discussion in 'Exterior' started by sawz, May 6, 2019.

  1. sawz

    sawz Senior Member

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    I saw a post on a Facebook group where someone put the 5th GEN LED tail lights on a 4th GEN truck. They physically fit but there were comments that the wiring was painful. Anyone have any insight into how to build the harness to accomplish this?
     
  2. Elevated 2013

    Elevated 2013 Senior Member

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    I’d be interested in finding this out as well. I’d also be interested in finding out if 5th gen OEM Projector headlights work on 4th gen trucks with OEM projector headlights as my headlight lenses look like they went through a sand storm.


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  3. kad

    kad Senior Member Supporting Member

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    Not sure if these are both projector style (4th Gen projector style are listed as "Composite") but here's the part numbers for two sets of 5th Gen headlights if someone with lots of disposable cash wants to try. :)

    68316088AG Composite Headlamp - 1500; W/ LED HEADLAMPS; W/ O ADAPTIVE HEADLAMPS; BLACK HEADLAMPS; RIGHT - $539.84
    68316089AG Composite Headlamp - 1500; W/ LED HEADLAMPS; W/ O ADAPTIVE HEADLAMPS; BLACK HEADLAMPS; LEFT - $539.84

    68316087AE Composite Headlamp - 1500; W/ O LED HEADLAMPS; BLACK HEADLAMPS; LEFT - $235.75
    68316086AE Composite Headlamp - 1500; W/ O LED HEADLAMPS; BLACK HEADLAMPS; RIGHT - $235.75

    Taken from here: https://parts.allmoparparts.com/aut...ngine/electrical-cat/headlamp-components-scat

    -K
     
  4. stimpy433

    stimpy433 Senior Member

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    I asked about this awhile ago and Jeremy from Retroshop said they aren't interchangeable.... they are physically different.
     
  5. kad

    kad Senior Member Supporting Member

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    If you just want the 2019 look, you could try these https://www.ramforum.com/posts/1962203/

    -K
     
  6. Arth

    Arth Senior Member Military

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    The 5th Gen 1500 tails don't fit but the 5th Gen 2500 tails do fit. Retroshop is currently working on a harness for the swap.

     
  7. Jimmy07

    Jimmy07 Senior Member

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    I know how I would do it. The connector parts and terminals are easy and cheap (about $40). The only way I can think of to get the parking lights and turn signals on the 2019 2500/3500 tails to function the way they’re supposed to is to run those two wires up each side of the chassis to each headlight harness and grab their turn signal and parking circuits with a conversion/pass through harness. So, basically, for each side, you would have a conversion harness for the tail light and a pass through harness for the headlight that are tied together with the turn and parking light circuit wires. This would also avoid cutting, tapping/splicing any factory wiring.
    I can post a diagram if you’re really wanting to do it.
     
  8. Roman217

    Roman217 Member

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    I believe the BCM has output pins for the rear turn signals as well. So a possible option would be to turn off the combined tail light setting and run the wiring back from the BCM. I'm betting this is how the export trucks with amber turn signals are set up.

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  9. Jimmy07

    Jimmy07 Senior Member

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    Yes, there are dedicated rear turn signal circuits on the 4th gen BCMs. You could definitely disable the combined rear lighting, and enable the rear dedicated turn signals. I was trying to think more like how retroshop would do it, because they have to make it 100% plug n play without relying on the customer to get programming done to the BCM to finish the install.
     
  10. Roman217

    Roman217 Member

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    Just checked, the pins that are needed are there. Would be great if they could offer both options.

    LeftRear1.JPG

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    RightRear.JPG
     

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