Transmissions | Clutches | Drivetrains, , USED RT23160 FRONT ROCKWELL DIFF WITH R:3.91, LOCKER, COMPLETE, INSPECTED READY TO WORK. ALSO MANY DIFFS IN STOCK(USED AND REMANS) - FOR PRICE AND SHIPPING CONTACT US AT -*** 4 - T R U C K S . C O M -OR- F O U R T R U C K S . C O M ***- AND CHECK OUR FULL INVENTORY.