Pretty simple. They're in alphabetical order. If you notice in rockauto, they are looking for a D8something, like D8E, D8N, D8I etc.Thanks, but there are lot of numbers in the SPID label, so how do I do this?
There's also the acdelco one at the very bottom. And the very first one, a standard motors close out. Thought it doesn't say D8N, it references the same 10456088 gm part number as the other two. And, has the black connector that seems common to the other two and Fred's link. The others have white and/or speedo cables. My guess it should be the sameYou are really helping me, thanks! This is the only sensor at rockauto with D8N in the description: http://www.rockauto.com/catalog/moreinfo.php?pk=946028&cc=1037258
So, this is the right sensor to order?