Interesting, I did not see that option. My drive shaft measured 29 1/4", and the one I bought is advertised as 30", so maybe it's only 3/4" longer even though it is advertised as 1".

I bought this one: BMW x5 Front Drive Shaft 00 03 1"Extended Splines BMW Part 26207508629 | eBay

Called the guy and is supposed to overnight it for me so I can install it this weekend. Hopefully it all works out. I'll report back.

Thanks for all the help. This forum is great!