: different versions of lsd

09-28-11, 02:22 PM
Hey guys. I have an late-05 build 2006 CTS with lsd. I want to drop in a lsd with 3.73 gears from a V. I have 1 available from an 07 that had the diff replaced in summer 0f 08.
Jimmy H mentioned that there were 4 versions of the lsd? How can I tell which version this wrecked V has? If Im going to get a new diff, Id prefer to get the newest version.

09-28-11, 03:04 PM
I believe the latest carries GM Part Number 25873498.

09-28-11, 03:11 PM
Ill have to go to the yard to take a look. In the meantime, does anyone know the date that the newest diffs first started being installed?

09-28-11, 03:13 PM
Not the exact date but late 08 is what I have always heard.