Sounds like a problem with the T/case, it might have got jammed between H and L gears to the rear, and only working the front prop shaft.
Would be nice to remove the front propshaft, and them try it in 4wd and see if the rear prop goes round, this would prove it.
Would be nice to remove the front propshaft, and them try it in 4wd and see if the rear prop goes round, this would prove it.
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