What rear end do I have?

[derekjl]

I need to buy a cover/seal kit for the rear differential on my 1999 Tahoe. It is an LT Auto4WD, 4 door. From what I understand there is an 8.5" and 9.5" inch, obviously the covers are different. I found a genuine ACDelco kit for $30. If there is a better alternative please also let me know. Thanks!

 

[Dneel81]

go to the junk yard and spend $5 and get one its an 8.5