Spicer 706944X Front Upper & Lower Ball Joint Kit for Jeep Wrangler TJ, YJ & Cherokee XJ (Dana 30 / 44, Single Side)

Eliminate loose steering play, correct front-end wander, and prevent severe tire wear with this genuine Spicer 706944X Front Upper & Lower Ball Joint Kit. Engineered as a high-durability, direct original equipment replacement for classic Jeep Wrangler TJ/YJ, Cherokee XJ, and Grand Cherokee ZJ platforms, this premium kit provides all the structural steering components needed to fully rebuild a single outer steering knuckle assembly on factory Dana 30 or Dana 44 solid front axles.

On classic Jeep open-knuckle solid front axles, the upper and lower ball joints act as the primary pivot points for the steering infrastructure, holding the weight of the vehicle while allowing the front wheels to turn. Over high mileage, daily driving, or technical trail use with suspension lifts and oversized off-road tires, the factory internal seats naturally wear down. This deterioration introduces slack into the steering knuckle alignment, which can lead to lane drift, uneven tire tread cupping, and the infamous front-end steering oscillation known as "death wobble." Replacing loose or worn-out hardware restores precise control and tight handling response.

Sourcing a genuine Spicer 706944X kit guarantees you receive components built to the vehicle's original factory blueprints. These ball joints feature premium-grade forged steel housings, advanced metallurgical internal components, and specialized multi-lip synthetic rubber dust boots to seal out mud, trail grit, road salt, and moisture. This single-side service package bundles one press-fit upper ball joint and one lower ball joint along with fresh cotter pins, castle nuts, and backing snap rings to ensure a reliable and complete installation.

Kit Contents (Components Service One Knuckle / Single Side):

• (1) Genuine Spicer Premium Front Upper Ball Joint

• (1) Genuine Spicer Premium Front Lower Ball Joint

• Complete Installation Hardware Set (Castle Nuts, Cotter Pins, and Retaining Snap Ring)

Kit Highlights:

• Single-Side Maintenance Solution: Supplies exactly enough factory-correct hardware to fully overhaul either the left (driver) or right (passenger) front steering knuckle. (Note: If overhauling the entire front axle, two kits are required).

• Restores Tight Steering Alignment: Eliminates structural slack within the steering knuckle tolerances to optimize front-end alignment stability and protect expensive light truck or mud-terrain tires.

• Premium Contaminant Exclusion: Outfitted with robust elastomeric dust boots that seal tightly against the housing to retain internal lubrication and keep trail debris out.

• Genuine Spicer OEM Quality: Precision-machined by the industry’s benchmark drivetrain supplier to guarantee exact press-fit dimensions, maximum fatigue resistance, and an extended operational life.

Vehicle & Axle Fitment:

• Axle Profiles: Open-Knuckle Solid Front Dana 30 and Dana 44 Axles. Fits standard and Rubicon models from the generations listed below. Does not fit later JK/JL/JT generation models or custom aftermarket 1-ton axle conversions.

• Jeep Wrangler YJ: 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, and 1995 models.

• Jeep Wrangler TJ / LJ: 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, and 2006 models (including Rubicon Dana 44 front axles).

• Jeep Cherokee XJ: 1984–2001 sport-utility models.

• Jeep Grand Cherokee ZJ: 1993–1998 models.

• Position: Front Outer Axle Wheel End — Left (Driver) or Right (Passenger) Side.