Originally Posted by simplex
I agree with Gmoniz on that.
The fact that the Guide B-31 back up lamp is on the Guide R-13 tail lamp leads me to believe that it is not the correct Suburban tail lamp assembly but, sounds more like the station wagon tail lamp assembly.

http://img.claspics.com/w8cp5hb/hhv16v9l/1371072608-439.jpg_m.jpg?1371072614


Thanks, I was looking for a picture like yours. That is a station wagon taillight mounted on a suburban, notice the square shape base.