Jump to content

LED Under Rail Bed Lighting

b1gted

By b1gted
in Modifications & Accessories

 Share

Recommended Posts

Aaron1085 Senior Enthusiast

Aaron1085

Posted
Posted

Big improvement upgrading the LED bulbs from the OEM ones to 921's? I have the under rail lighting as a standard SLT package.

 

Sent from my DROID RAZR HD

 

 

  • Replies 399
  • Created
  • Last Reply

Top Posters In This Topic

Popular Days

Top Posters In This Topic

Popular Days

Popular Posts

block8head
block8head

Here you go...

electricchiken7
electricchiken7

I installed the after market ones. I tied them into my cargo lights. Great mod!!     Sent from my Galaxy Nexus using Tapatalk    

corwest
corwest

Just as a heads up: The junction box comes with a cover for the plug that these plug into. So I made my own plug out of the cover with a couple parts from other plugs i had laying around and sealed

Posted Images

Mike1220 Senior Enthusiast

Mike1220

Posted
Posted

Ok. I read through this thread and not sure if I am missing something. My truck has the factory led lights that are turned on/off with cargo light. I don't want to add more light. I'd simply like to add an addition switch to the existing lights in the bed. The new switch would go under the rail right near the tailgate. Is this possible? I am not overly concerned about water as I have a fairly water tight cover.

Yes it is very easily possible. All you need to do is go and go and run a power line from a constant source such as the battery or other live wire and then run the lights to either just your switch or you could also run a 3 way switch (this is what I plan to do eventually) and run ur lights to both ur cab switch and ur switch that is in the bed. Both options are easy. With of course one being slightly more intricate than the other.

 

 

Sent from my iPhone using Tapatalk

Mike1220 Senior Enthusiast

Mike1220

Posted
Posted

Big improvement upgrading the LED bulbs from the OEM ones to 921's? I have the under rail lighting as a standard SLT package.

 

Sent from my DROID RAZR HD

 

Which ones are you speaking of upgrading? The under rail lights are already LEDs. The only other bed lights are the cargo lights and I changed those out on my truck and believe that it is very much worth changing them out

 

 

Sent from my iPhone using Tapatalk

Aaron1085 Senior Enthusiast

Aaron1085

Posted
Posted

Oh OK, the cargo light (above then rear window) are worth the 921LED bulb swap?

 

Sent from my DROID RAZR HD

 

 

MotoMedic Senior Enthusiast

MotoMedic

Posted
Posted

Ok. I read through this thread and not sure if I am missing something. My truck has the factory led lights that are turned on/off with cargo light. I don't want to add more light. I'd simply like to add an addition switch to the existing lights in the bed. The new switch would go under the rail right near the tailgate. Is this possible? I am not overly concerned about water as I have a fairly water tight cover.

You can't have two (+) sources going to the light without installing a diode to protect the factory (+) from cross-feeding. Using a "3-way" switch (SPDT) in the bed would be the better choice.

YQatari Enthusiast

YQatari

Posted
Posted

For anyone who is looking to add some under rail lighting, or to be more specific, who already has the kit in their truck from factory and is looking to add a second kit. I just got my kit in today and noticed that the color of the LEDs on the second kit, which is a certified GM OEM part and should match exactly what is already in my truck, is slightly different. The colors are not exactly the same as shown here

yvy9yjyq.jpg

 

 

 

Sent from my iPhone using Tapatalk

That's weird, the second set that I got perfectly matches the old one! I wired mine differently though, mine were spliced and soldered.

What kind of bed liner and cover do you have?

 

Oh OK, the cargo light (above then rear window) are worth the 921LED bulb swap? Sent from my DROID RAZR HD

YES! the LED is much brighter! plus it looks nicer.

Mike1220 Senior Enthusiast

Mike1220

Posted
Posted

For anyone who is looking to add some under rail lighting, or to be more specific, who already has the kit in their truck from factory and is looking to add a second kit. I just got my kit in today and noticed that the color of the LEDs on the second kit, which is a certified GM OEM part and should match exactly what is already in my truck, is slightly different. The colors are not exactly the same as shown here

Sent from my iPhone using Tapatalk

 

 

That's weird, the second set that I got perfectly matches the old one! I wired mine differently though, mine were spliced and soldered.

What kind of bed liner and cover do you have?

 

 

 

Oh OK, the cargo light (above then rear window) are worth the 921LED bulb swap? Sent from my DROID RAZR HD

 

 

YES! the LED is much brighter! plus it looks nicer.

 

Yes that's what I meant. It's basically a toss up. Eventually I may try another kit but for now imma just ignore my OCD about it. If I can haha. And I have the BAK Roll-X tonneau cover, I love it. And I have a Bedrug as the liner, again, wouldn't change a thing about it. I really like it.

 

 

Sent from my iPhone using Tapatalk

Mike1220 Senior Enthusiast

Mike1220

Posted
Posted

Oh OK, the cargo light (above then rear window) are worth the 921LED bulb swap?

 

Sent from my DROID RAZR HD

Yes it can make a very large difference! Depending on which light you get though. Some may not be as bright as stock in the new GM housings that use diffusers. It's most noticeable on the reverse lights but still, to me, noticeable on any light with these new lenses. There's a thread about the cargo lights being switched here http://www.gm-trucks.com/forums/index.php?/topic/153101-LED-921-Reverse-%26-Cargo-Bulbs/page__view__findpost__p__1432845

 

 

 

Sent from my iPhone using Tapatalk

MotoMedic Senior Enthusiast

MotoMedic

Posted
Posted

SPST w/ Diode vs SPDT "3-way" switch wiring methods.

 

*Note: called out a 5 amp diode, but bed lights are so low draw, you could use a 2 or 3 amp diode.

post-34923-0-95668000-1396234134_thumb.jpg

post-34923-0-95668000-1396234134_thumb.jpg

post-34923-0-95668000-1396234134_thumb.jpg

post-34923-0-95668000-1396234134_thumb.jpg

  • Like 1
YQatari Enthusiast

YQatari

Posted
Posted

Yes that's what I meant. It's basically a toss up. Eventually I may try another kit but for now imma just ignore my OCD about it. If I can haha. And I have the BAK Roll-X tonneau cover, I love it. And I have a Bedrug as the liner, again, wouldn't change a thing about it. I really like it.

 

 

Sent from my iPhone using Tapatalk

I was kinda between the Roll-X with Bak Box or the G4 Elite with the personal caddy, but I went with the G4 and personal caddy, I also added a LED strip inside the caddy that lights with the rest of the cargo lights. I love it so far! And I have Line-X bed liner, pretty tough liner!

Glad you like yours!

Yes that's what I meant. It's basically a toss up. Eventually I may try another kit but for now imma just ignore my OCD about it. If I can haha. And I have the BAK Roll-X tonneau cover, I love it. And I have a Bedrug as the liner, again, wouldn't change a thing about it. I really like it.

 

 

Sent from my iPhone using Tapatalk

I was kinda between the Roll-X with Bak Box or the G4 Elite with the personal caddy, but I went with the G4 and personal caddy, I also added a LED strip inside the caddy that lights with the rest of the cargo lights. I love it so far! And I have Line-X bed liner, pretty tough liner!

Glad you like yours!

  • 2 weeks later...
DRS 95 Silverado Enthusiast

DRS 95 Silverado

Posted
Posted

I was kinda between the Roll-X with Bak Box or the G4 Elite with the personal caddy, but I went with the G4 and personal caddy, I also added a LED strip inside the caddy that lights with the rest of the cargo lights. I love it so far! And I have Line-X bed liner, pretty tough liner!

Glad you like yours!

I was kinda between the Roll-X with Bak Box or the G4 Elite with the personal caddy, but I went with the G4 and personal caddy, I also added a LED strip inside the caddy that lights with the rest of the cargo lights. I love it so far! And I have Line-X bed liner, pretty tough liner!

Glad you like yours!

How do you like the caddy? I'm looking at the same cover and thought the caddy would be nice also. Can you reach into good standing on the the ground?

YQatari Enthusiast

YQatari

Posted
Posted (edited)

 

How do you like the caddy? I'm looking at the same cover and thought the caddy would be nice also. Can you reach into good standing on the the ground?

The caddy is such a nice option, I like it! You'll need a bed step to fully reach into the caddy, especially when your truck is lifted, that's common with all the tool boxes.

You're free to take a look at mine if you live close to Rolla.

Edited by YQatari
DRS 95 Silverado Enthusiast

DRS 95 Silverado

Posted
Posted

The caddy is such a nice option, I like it! You'll need a bed step to fully reach into the caddy, especially when you're truck is lifted, that's common with all the tool boxes.

You're free to take a look at mine if you live close to Rolla.

Thanks, mine is not lifted. I'm over in Ste. Genevieve, its south of St. Louis

  • Like 1
  • 2 weeks later...
2017SierraSLT Senior Enthusiast

2017SierraSLT

Posted
Posted

 

 

That's weird, the second set that I got perfectly matches the old one! I wired mine differently though, mine were spliced and soldered.

What kind of bed liner and cover do you have?

 

YES! the LED is much brighter! plus it looks nicer.

I spliced two kits together, and all 4 are the same intensity and color. Must be a manufacturing variation.

leviblue Enthusiast

leviblue

Posted
Posted

I spliced two kits together, and all 4 are the same intensity and color. Must be a manufacturing variation.

White LED's are the hardest color to match. It depends on the LED being harvested from the crystals grown. The o es closest to the center are more intense and brighter while the ones closer the the edge loose the intensity. While the service life shouldn't be affected, the color will change.

  • Like 1

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing

  • Recently Browsing   0 members

    • No registered users viewing this page.

  • Forum Statistics

    250.5k
    Total Topics
    2.7m
    Total Posts

  • Member Statistics

    342,962
    Total Members
    8,960
    Most Online
    contrabombarde
    Newest Member
    contrabombarde
    Joined

  • Who's Online   4 Members, 0 Anonymous, 1,407 Guests (See full list)

  • Latest Articles

  • Posts

    • parthery
      GM Hard Folding Tonneau by REV review

      By parthery · Posted

      Some clarification may help with some of these issues.   - Rev Industries is/was the division of BAK (now Realtruck) that makes covers under the OEM names.  So if you see one with a Ford logo on it, or if you are buying the GM Accessories cover, you are essentially buying a BAK G2 cover with different branding.   - Rev Industries now markets under RealTruck "Advantage."   - As of May 1, 2025, the Advantage covers now have a 5 year warranty.  Anything before that was a 36/36K warranty.   - Parts for the covers are available from Realtruck or BAK.  The email address to reach them is [email protected] or you can call them at 818-365-9000   - If the entire cover has to be replaced, you have to go through your local GM dealer.  Service dept opens an RO, notes the damage and submits it as a warranty claim.  Keep your paperwork handy so they can confirm when you purchased it and it's within the warranty timeframe.  Once the warranty claim is approved, Parts orders the replacement cover.  When it arrives at the dealership, service will remove and install the new one for free as labor is included under warranty.   - The Advantage covers are not the latest and greatest Gen 3 covers.  They still use the old school clamps, elevator bolts, etc...If you want the newer technology, consider buying your cover in the aftermarket world.  That way, if you have an issue you can deal directly with the manufacturer.   - Finally, RealTruck has a program with many of their authorized dealers that doubles the warranty to 10 years if the authorized dealer does the install.     Hope this helps.
    • parthery
      Upgrade to a 2026 AT4 with the 3.0L Duramax

      By parthery · Posted

      Welcome to the group!  My '22 just crossed 150K miles.  Runs perfectly.  Oil pump belt will be done in the next 30 days or so and onward hopefully for another 150K.  Love the truck.
    • richard wysong
      Needing this part.

      By richard wysong · Posted

      Still looks like a rivet to me in the pics, I don't see a nut and none of the pics show the head of the screw. But if you says so.....
    • jgaudet99
      Tire psi

      By jgaudet99 · Posted

      Thanks for all the help so far!   I did try right from 2026 right down to 2021, and only from 2023 down lets me select the option for tire psi change, but I get the vehicle not supported error!   I'll definitely try it under Chevrolet after work today, and I'll get the sensor number from gm for my truck tire sensors. And I'll let you know if it works for me under Chevrolet!   And if that doesn't work, I'm going to guess that what @Atlas said about maybe I have a different body control module could be true!  
    • Jsdirt
      2010 Avalanche 5.3 not running correctly after engine swap.

      By Jsdirt · Posted

      From where I'm sitting this sounds like a compatibility problem. I'm assuming the 2007 was a 900-series truck, and not an 800-series (they were sold side-by-side in dealerships that model year), since it starts and runs.   This is why I HATE post-2006 vehicles. Everything becomes a huge problem when you try to keep the thing running for longer than the manufacturer has designed it to.    I can't remember when Global-A architecture started - either '10 or '11. For your sake, you had better hope it's '11, or you're going to be spending some BIG money to correct this cluster-eff. That's something you need to find out before doing anything else. You may have several computers bricked ... but the fact that it runs tells me you MIGHT be ok here.     EDIT: Just did a quick refresher. You're screwed. This is Global-A. The 2 systems are NOT compatible in the slightest. Once you get the correct engine in there that IS compatible, you're going to need to see how many computers are locked. Absolute NIGHTMARE to straighten out, too. Your buddy might be better off cutting his losses and finding something else.   Welcome to post-2006 vehicle electronics. This is why I quit the industry, and drive nothing built after 1994. This stuff takes all the fun out of wrenching!  

  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...