Excellent point of durability vs reliability. I don't recall seeing any separation in posts. I will watch for that in the future. Sometimes the threads influence me to expect the horror stories are going to happen to me, likely tomorrow. Looking at the spec comparions of other transmissions, I see no advantage over what I have. And, I certainly don't want to have to find out how to get an alternative transmission to communicate properly. So far, my conclusion would be to stay with what I have with the exception of the splines and maybe change to a torque converter that has a higher stall speed and locks up quicker and will stand up to more torque.

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X5 4.6 2002 Black Sap, Black interior. 2013 X5M Melbourne Red, Bamboo interior
Dallas