Quadra-Trac II (R) 4WD System. [MAN SHIFT-ON-THE-FLY TRANSFER CASE], [3.73 AXLE RATIO], [Axle Ratio - 4.10], [3.42 Axle Ratio], [MAN SHIFT-ON-THE-FLY TRANSFER CASE], [4.56 REAR AXLE RATIO], 52105646ad, 52105649ad, 52853060ac, 52853061ac, Range fork, With 52105646AF, With 52105649AF, With 52853060AE, With 52853061AE.