Quote:
Originally Posted by oldskewel
... the concern is the mismatch in tire diameter from front to rear. That will cause the transfer case to do more than it would if tire diameters were equal, as the truck was designed.
... I can't find the source where I found that. I believe it should be no more than around 5...
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As other's have mentioned...the early e53 X5s with the permanent 32/68 split torque...uses ABS/ASC+T/DSC (aka DSC-X) to facilitate part of its AWD functionality. The info below says that
a critical slip ratio greater than 5% will cause traction control regulation to occur (see info under
"traction control system overview {ASC)"}. This can be in the form of engine throttle reduction or the application of ABS braking:
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