Replacement spindle nut kit for Dana 50 and 60 with two 4-slot type nuts and washer. Unit is sold per side and is covered for one year against manufacturing defects. (Part number AK D60F-NUTS) Yukon Gear & Axle manufactures a full line of top-quality small parts to complete any job including ring gear bolts, crush sleeves, pinion nuts and washers, axle studs, thrust washers, and much, much more. For all your differential small parts needs, look no further than Yukon.