Quote:
Originally Posted by 740ilDuke
....The 4.4 X5 box will work without issue, the only differences being the TC and Valve body....
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Important to remember that the 4.6is model also has an additional friction & steel plate in the D brake to handle the extra torque. You can’t just swap the bellhousing/torque converter and the upper valve block assembly over to the 4.4i transmission.
Phil