Review on Efficient Lighting Socket: Dorman 645-626 3 Wire Socket for Bright Illumination by Brad Dotson

I installed this on my 2005 Chevy Silverado. The great thing about 3175 bulbs is that they almost never fail. The bad thing is that the device holding them fails. I would rather buy a lightbulb than a lamp any day. So be it. If you are a purist, don't take this. If you want something cheaper than buying a whole suspension from the dealer and don't mind getting it or modifying it a bit to make it fit easily, you're fine. I've just installed them, so with all the rough motion and impact that goes into opening and closing the tailgate, I can't comment on the durability or stability of the product. I can say that it takes a lot of strength and/or different movements to get into the hole. There are three legs that only fit in the three slots one way since they are offset from each other. One tab is very wide for the position it is in when the other two tabs are aligned in the taillight assembly. Your choice is to either force it or modify the liner. I decided to alter the shank and cut it off with a dremel. There are no instructions, so when connecting you have to trust that the wires are in the same place as the old ones. They provide clear butt connectors that make crimping easier. The fit is as tight as an old lightbulb which didn't inspire much confidence that it would stay the way it was but still stayed in place all these years. I saw a clip on this unit on a Dodge so I think it fits more than one make of car. That's why I gave 3 stars because it fits but not quite like the OEM. I like Dorman and I think they do a great job so will end up buying again if it lasts.