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How do I find out what type of Posi unit I have?

bipolar
03-15-2007, 03:38 PM
Such as Auburn Gear or Zexel Torsen? 1994 Z28...
The Engineer
03-15-2007, 04:04 PM
Such as Auburn Gear or Zexel Torsen? 1994 Z28...

I believe if it is the OEM factory posi unit it will be an Auburn clutch-cone type. If someone has changed-out the unit, you'll just have to remove the cover take a photo (that shows the inter-works of the carrier) and post it here and let someone ID it.

WD
exgmguy
03-15-2007, 07:24 PM
The Auburns have yellow springs in the clutch pack, very easy to see if you pop the diff cover off.
Capn Pete
03-15-2007, 07:35 PM
I believe that the Zexel Torsen diff's weren't used until the late 90's (~'99? :shrug: ) so I'm pretty sure that all LT1's came with the Auburn :think:.