Lower the axle...(Drop it down, add blocks between trans axle and frame...)
Then add a "reverse" jack shaft to lower the drive belt to run tranny...
That's opposite of what racers do to "lower" their chassis, but the principal is the same...
Also want to "Lock" the rear axle for posi traction...don't want the diff letting one tire spin when in the mud...
Raising front is simple enough, unbolt pivot add longer plates with new pivot hole and bolt in
Would think you "want" front pivot to allow rear axle to work the contours...
Might have to lengthen steering rod..