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- Base
That tcase will allow front and rear drive shafts to turn at different speeds for full-time 4 wheel drive on pavement. It will include some form of slippage or differential action. Some of those cases also have a locking feature to act like a regular locked tcase. I am talking in general - haven't seen much on the Bronco offering.4A gives you that sort of All wheel Drive mode that is safe to use regardless of the surface conditions.
EDIT: Also has anyone heard of a low crawler gear option in the Bronco tcase, similar to the 4:1 offering by Jeep?
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