National KD-11786-Y Wheel Bearing and Race Set - Front, Rear or Rear Inner

National KD-11786-Y Wheel Bearing Set

National KD-11786-Y is a taper wheel bearing and race set built with premium-grade steel for driveline and axle service. The crowned raceways and rollers are engineered to promote even load distribution, making this a direct-fit service part for select Chevrolet and GMC rear axle applications.

Use this bearing set when servicing rear wheel bearing wear on 1967-1972 Chevrolet C20 Suburban, 1967-1972 Chevrolet K20 Suburban, 1969-1970 Chevrolet K10 Suburban, 1967-1972 GMC G25/G2500 Van, and 1970-1972 GMC G35/G3500 Van applications. National KD-11786-Y is also referenced by SKF KD11786-Y for the same application.

• Part type: wheel bearing and race set
• Taper bearing cone: 388A
• Taper bearing cup: 382
• Cone bore: 2.2650 in. / 57.5310 mm
• Cup bore: 3.8750 in. / 98.4250 mm
• Width: 0.8268 in. / 21.0010 mm
• Standout: 0.1250 in. / 3.1750 mm
• Premium-grade steel construction
• Crowned raceways and rollers for even load distribution

Detailed Product Overview

This National wheel bearing and race set is specified for rear and rear inner positions on select Chevrolet and GMC vehicles with H052 and GMC H072 axle configurations. The cone and cup dimensions are matched for the listed applications, helping maintain proper bearing fit during axle service on Chevrolet C20 Suburban, Chevrolet K20 Suburban, GMC G25/G2500 Van, GMC G35/G3500 Van, and Chevrolet K10 Suburban models.

Part number KD-11786-Y is a useful reference when searching for a rear wheel bearing set for 1967-1972 Chevrolet and GMC trucks and vans with the correct axle notes. If you are comparing listings, KD-11786-Y and SKF KD11786-Y identify the same application family.

Common Service Issues

• Rear wheel bearing noise or growling
• Excessive wheel end play
• Rough rotation during axle inspection
• Wear at the bearing cone or race surface
• Service replacement for rear axle bearing maintenance

Installation Notes and Tips

Verify axle type, position, and bearing dimensions before installation. This part is listed for rear and rear inner positions only, with fitment tied to H052 and GMC H072 axle notes where shown. Clean the hub and axle surfaces thoroughly, inspect the spindle or axle journal for scoring, and confirm the cup and cone are seated correctly during assembly.

Quality Assurance

National manufactures this taper bearing set with premium-grade steel and crowned raceways and rollers to support even load distribution in service. The part is built to the listed dimensional specifications for the confirmed Chevrolet and GMC applications.