Starting point, Toe-in frt & rear at 1 degree. Then Ball Diffs frt & Rear, Tighten till, by hand, turn rt rr wheel forward direction, left rear turns the same forward direction. Same thing on your frt diff. Then adjust each frt and rear diff till your satisfied.
Which ever side it's sliding more torque is supplied on that side. Tightening the diffs should put equal torque on you rear wheels.