It doesn't get more authentic than these vintage GM ball-type wheel bearings! Through 1961, Chevrolet and GMC light trucks use ball-type front wheel bearings. Ford, Dodge, Studebaker, and I-H each use Timken-style tapered roller bearings. Ball bearings require care and special service procedures. Vintage GM truck owners often convert to tapered roller bearings. These ball bearings, however, will be serviced and set to factory specifications.