Greetings All!
I am in need of replacing the Transfer Case Chain. In searching for the part I note that there may be two transfer case models used for MY 2003, LWC500 or ATC500 and they use different chains. I have a 2003 3.0i with automatic transmission. How can I find the transfer case model that is in the car? I noticed a "badge" on the back side of the case (red lettering on metal) and think I saw a number on the case, FWIW.

All help appreciated.

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2003 X5 3.0 - Original Owner