Hi John, Mark, Edouard and Buick do it yourselfers, I found those replacement white double contact sockets at most of the retail auto stores, years ago they were $2 each, now they are up to $4.99 in some locations. But just be careful the newer ones are not made to the old specs. I found this out last year, I had to replace a rear socket on my friends 65 Skylark. I installed a new (white) socket on the Buick and when I went to put it in the taillight the socket kept popping out. After fooling with it for a while there had to be something wrong. I removed it and took a good look at it and compared it to the original worn out one. it looked the same but then I noticed that the two steel tabs that hold it in and make the electrical ground were different on the new socket !! The steel tabs did not have a second bend in them that would lock it into place. I went back to my box of new sockets dumped it out on the workbench, and the older white ones do have the correct tabs. So somewhere the design of the tabs was changed! I took the newer white defective ones threw them in the recycle can, Don't want to waste my time with them, and will use the older white ones. I also did some research over the winter on a better replacement socket. Wiring Depot 888-947-3568 in Reno NV has a great website full of automotive electrical parts/sockets. I found a replacement socket that will work great on our Buicks. It's a JT&T (2573F) $4.49 ea. 1 1/8 hole GM double contact 1157 bulb replaces AC Delco LS224. It's not a stock looking socket but it has many prongs that will make a good ground and not fall out of the light housing.