Spicer Front Upper & Lower Ball Joint Master Kit for Chevy & GM Dana 44 / 10-Bolt (Both Sides)

Eliminate loose steering wheel play, correct erratic highway tire wear, and restore smooth tracking to your classic truck with this genuine Spicer Front Upper & Lower Ball Joint Master Kit. Specifically packaged as a complete, dual-side overhaul for vintage Chevy and GMC solid front axles (Dana 44 & GM 10-Bolt), this heavy-duty kit completely replaces your loose, worn-out steering knuckle pivots.

On classic GM solid-axle 4x4 platforms, the upper and lower ball joints bear the entire weight of the front chassis while providing the primary pivot axis for the steering knuckles. Over high mileage, decades of service, or the added stress of running larger oversized off-road tires, the internal seats within budget ball joints deform, stretch, or collapse. Failing ball joints introduce dangerous lateral slop into the wheel assembly, presenting themselves through an unpredictable "wandering" steering feel, uneven front tire tread wear, loud clunking sounds when driving over rough terrain, or severe steering wheel vibration at highway speeds.

This original equipment manufacturer (OEM) master kit includes two premium upper ball joints and two heavy-duty lower ball joints to fully service both the driver and passenger sides of your front end. Sourcing genuine Spicer components guarantees exact matching factory tapers, heavy-duty forged steel housings, and advanced internal grease management properties engineered to handle the high-leverage forces common to classic utility and lifted truck configurations.

Kit Contents (Services Both Driver & Passenger Wheel Knuckles):

• (2) Premium Front Upper Ball Joint Assemblies

• (2) Heavy-Duty Front Lower Ball Joint Assemblies

• (1) Complete Installation Hardware Pack (Cotter Pins, Castle Nuts, Snap Rings, & Grease Zerk Fittings)

Kit Highlights:

• Complete Four-Piece Master Set: Supplies both the upper and lower ball joints necessary to fully overhaul the left and right steering knuckles simultaneously.

• Genuine Spicer OEM Quality: Manufactured by the industry's premier axle supplier to guarantee strict factory tolerances, robust metal tempering, and exact structural compliance.

• Restores Steering Integrity: Eliminates irregular movement at the steering knuckle, restoring predictable tracking and reducing invasive front-end vibration feedback.

• Greaseable Service Design: Features integrated grease channels and zerk fittings, allowing for routine maintenance lubrication to flush out trail contaminants and ensure a long service life.

Vehicle & Axle Fitment:

• Axle Profiles: Open-Knuckle Solid/Monobeam Front Axles: Dana 44 and GM 8.5" 10-Bolt assemblies.

• Chevy / GMC Trucks & SUVs: 1973–1987 Chevy/GMC K10, K20, K1500, K2500 pickups, and 1973–1991 K5 Blazer / Suburban 4x4 models.

• Position: Front Steering Knuckle Pivots (Fits Upper & Lower, Left & Right Sides)