Spicer Front Lower Steering Knuckle Kingpin Bearing & Seal Kit for Dana 60 Axles (Single Side)

Eliminate unsafe front-end play, cure harsh steering shimmy, and restore factory-original handling to your classic heavy-duty rig with this genuine Spicer Front Steering Knuckle Lower Kingpin Rebuild Kit. Specially engineered for classic 1-ton and heavy-duty 3/4-ton 4WD trucks utilizing the legendary Kingpin Dana 60 front axle housing, this targeted single-side service package bundles the high-wear lower knuckle components into one convenient, drop-in repair solution.

On classic solid-axle trucks, the lower kingpin bearing carries the massive vertical load of the vehicle, heavy powertrain, and oversized off-road tire setups. Over decades of service or intense trail use, moisture and abrasive road grit degrade the internal seals, washing out the grease and causing the lower tapered roller bearing to pit, rust, or bind. A worn lower kingpin setup can lead to erratic steering tracking, severe tire wear, and loose steering knuckle play.

This original equipment manufacturer (OEM) kit updates your front steering geometry with professional-grade components. It includes the case-hardened lower tapered roller bearing, precision-ground race, replacement lower cap, and premium multi-lip elastomeric seals designed to handle high torsional forces while keeping contaminants locked out.

Kit Highlights:

• Targeted Lower Knuckle Service: Contains 1 lower kingpin bearing, 1 lower bearing race, 1 lower cap, 1 lower grease seal, and 1 upper kingpin seal to completely refresh the lower half of one wheel station.

• Genuine Spicer OEM Engineering: Manufactured by the original equipment supplier to guarantee perfect structural tolerances and metal hardness metrics that generic aftermarket alternatives cannot match.

• Heavy-Duty Forged Construction: Precision-ground bearing steel provides exceptional fatigue resistance and prevents deflection under intense off-road or commercial hauling loads.

• Premium Environmental Barrier: Multi-lip synthetic rubber seals keep clean grease securely isolated within the knuckle cavity while locking out trail mud, water, and road grime.

Vehicle & Axle Fitment:

• Axle Profile: Fits classic Kingpin-style Dana 60 (and select Dana 61) Front Axles only (Does not fit newer ball-joint style axles).

• Chevy / GMC: 1977–1991 K30, V30, K35, K3500, V3500 (1-Ton 4x4 Models)

• Dodge: 1975–1993 W200, W250, W300, W350 (Heavy Duty 4x4 Models)

• Ford: 1978–1991 F-250 and F-350 (Heavy Duty 4x4 Models)

• Position: Front Lower Steering Knuckle (Fits Left or Right Side — 2 Kits Required per Vehicle)