I have these on my truck and I am starting to get frustrated, I need help!!

Spyder Auto | Chevy Silverado 1500/2500/3500 2010 LED Tail Lights - Chrome

In the picture on the website that shows the back of the housing you can see two white stickers that cover the holes where the reverse light bulbs are supposed to go. Anyone who has taken their tail lights out can tell you that those are not the correct style bulbs for our NNBS trucks. Anyone else have this problem? I have been driving with no reverse lights!

 

The ones you bought have the two holes? The silverado used the 921 bulb for reverse in '10 only, so I think they just sent you the wrong ones for your model year.

 

The online description sucks and the pics aren't making much sense either but if you want the part number for 921 style tail lamp harness let me know. As Preston pointed out, GM flip flopped back and forth from the 3047 to the 921 reverse light bulb. Still doesn't explain two reverse light holes in each housing though.

 

The two holes is a head scratcher for me too. I could see putting two holes if one was for the 3047 bulb, but two holes for a 921 doesn't make any sense.

Your options are to try exchanging them for ones for an 07-09, since they don't seem to offer the right style for '11; cut the 3047 socket and install a 921, or get the harness with the 921 so that if you ever decide to put the stock tails back in you still have the OEM harness.

 

Ah! I would have the one model year truck that they dont work for!

Yeah if you have the part number that would be awesome!


I already tinted the LED tails so returning them isnt an option...... I think I will have to rock some kind of crazy frankenstein wiring behind my tail lights in order to be able to use both the LED and stock ones.

 

If you look online for 921, T10 sockets they're pretty cheap if you want to just cut off the 3047. Here for example, near the bottom of the page, sockets are $2.99:

906 921 Interior Lights

Alternatively, for a less permanent solution, I think the p/n for 2010 rear tail light harnesses are:

L: 20840283
R: 20840584

Robert might want to confirm those numbers though.

 

Thanks man. Any idea what option I need to select from the drop down menu in the first link once you scroll down to the actual part? I think I need the 60-59?