The All Balls Front Differential Bearing Kit contains all bushings, seals and hardware needed to repair or refurbish your machine's differential. Precision ball bearings. Machined race needle bearings. Double-lip Type TC seals. Repair sleeve for pinion shafts - the pinion shaft can be machined and this sleeve installed, saving hundreds of dollars. Note: Kit contents will vary by fitment and are subject to change. Kit includes: 5 ball bearing(s). 1 needle bearing(s). 4 seal(s).