Transfer Case Dana 21 Bearing Kit 1966-1976 USA Standard GearUSA Standard Bearing and Seal Overhaul Kit has all you need to rebuild that transfer case. Comes with bearings, seals, gaskets to make the job easy and painless. When you think Quality, think USA Standard. Transfer Case Bearing and Seal Kit Bearings, Seals, and Small Parts Included Made In The USA USA Standard Sold As A Kit Fits Vehicles Transfer Case: 68 1975 Ford F 100 Pickup Dana 21 Features and Benefits: Dana Spicer Model 21 Single Speed Bearing