I've called ZF (they have a US office - Connecticut I think) asking about the tranny for a 4.4i. The guy said list was $3600 but almost instantly offered it for $3k. That's with the torque converter and filled with factory fluid. They require a rebuild able core be returned.

Not such a bad deal. Mine has been behaving (knock on wood) since a fluid/filter change.

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David.X5
2001 X5 4.4i Sport
SOLD! at 160k miles