Spicer Front Upper & Lower Ball Joint Master Kit for 1974-1988 Jeep Cherokee, Wagoneer & J10/J20 (Dana 30 / 44, Both Sides)

Eliminate front-end steering play, correct wandering tracking or "death wobble" tendencies, and restore original factory handling to your classic Jeep with this genuine Spicer Front Upper & Lower Ball Joint Master Kit. Specifically engineered as a high-durability, direct original equipment replacement for 1974–1988 Jeep 4x4 platforms, this package contains all the primary heavy-duty structural components required to fully rebuild both the driver and passenger side steering knuckles on axles equipped with open-knuckle Dana 30 or Dana 44 front assemblies.

On vintage and classic Jeep vehicles, the front steering knuckles pivot on a rugged dual ball joint design. This layout is responsible for directing steering inputs while supporting the immense weight of the vehicle’s body and heavy iron-block engines. Over decades of farm use, highway cruising, or off-road trail riding with oversized tires, the internal seats of these factory ball joints naturally wear out, dry up, or experience water entry. Worn ball joints introduce dangerous play into the front axle knuckles, causing steering wheel wander, loose responsiveness, or low-speed front-end clunking. Left unaddressed, severe ball joint wear alters front wheel alignment, accelerates wear on steering linkages, and risks structural component separation on the road or trail.

This original equipment manufacturer (OEM) replacement master bundle features heavy-duty ball joints forged from premium-grade steel, heat-treated for maximum fatigue resistance, and precision-machined to exact factory tolerances. Sourcing a genuine Spicer kit ensures a perfect press-fit into your factory inner C-axle ears, eliminating the risk of loose housings or premature component failure. To match original factory performance and demanding trail duty, these premium replacement units are engineered with a grease-service architecture, allowing you to flush away moisture, road salt, and trail grit during routine maintenance.

Kit Contents (Complete Set Overhauls Both Front Knuckles):

• (2) Genuine Spicer Premium Heavy-Duty Upper Ball Joints

• (2) Genuine Spicer Premium Heavy-Duty Lower Ball Joints

• Complete Set of Factory-Spec Castle Nuts, Cotter Pins, and Retaining Hardware

• Specialized Knuckle Threaded Adjustment Sleeves

Kit Highlights:

• Complete Dual-Side Restoration: Supplies exactly enough factory-correct upper and lower ball joints to fully overhaul both the left and right front steering knuckles simultaneously.

• Genuine Spicer Forged Strength: Precision-manufactured by the industry's benchmark drivetrain supplier to guarantee uncompromised structural integrity, exact metallurgical limits, and a long operational lifespan.

• Greaseable Service Design: Features integrated lubrication paths and grease fittings, letting you easily flush out trail contaminants to maximize internal ball-and-socket service life.

• Restores Tight Handling:高度 Eliminates internal knuckle play to instantly solve lane wander, reduce front-end vibration, and prevent premature wear on expensive light truck or off-road tires.

Vehicle & Axle Fitment:

• Axle Profiles: Solid Open-Knuckle Front Dana 30 and Dana 44 Axles. Does not fit heavy-duty Dana 60 upgrades or custom aftermarket axle swaps.

• Jeep Cherokee (Full-Size SJ): 1974, 1975, 1976, 1977, 1978, 1979, 1980, 1981, 1982, and 1983 full-size 2-door and 4-door models (including Wide Track variants) with Dana 44 front axles.

• Jeep Cherokee (Mid-Size XJ): 1984, 1985, 1986, 1987, and 1988 4x4 sport-utility models with Dana 30 front axles.

• Jeep Wagoneer / Grand Wagoneer: 1974–1988 full-size 4x4 wagon models with Dana 44 front axles.

• Jeep J10 / J20 Pickups: 1974–1988 full-size 4x4 trucks running open-knuckle Dana 44 axles.

• Position: Front Axle Steering Knuckle — Left (Driver) and Right (Passenger) Sides (1 Kit Overhauls Entire Front Axle)