All parts are manufactured to meet or exceed the original part it is replacing. Bronco differential bearings and seal kits  include all bearings and seals necessary to do differential rebuild and feature:

• High-speed bearings that meet ABEC industry precision standards.
  
  
• Sealed bearings use double or triple lip seals with garter springs to better keep the grease in and the water and dirt out.
• Premium grease contains rust and oxidation inhibitors.