Yukon Gear & Axle YSPBJ-009HDK2 Heavy Duty Ball Joint Kit Ford Bronco F150 Upper Lower

The Yukon Gear & Axle YSPBJ-009HDK2 is a complete heavy-duty ball joint replacement kit engineered for Ford Bronco and F-150 applications. This comprehensive kit replaces both upper and lower front ball joints on both sides, providing a complete front suspension upgrade with superior materials and construction.

Premium Construction:

• CNC-machined housing from forged SAE 1045 carbon alloy steel for maximum strength
• Ball studs manufactured from induction heat-treated, hot-forged 4140 chromoly steel
• Military-grade acetal bearings provide advanced anti-friction properties and dimensional stability
• Two-stage boot protection system with synthetic Neoprene/CR outer boot and inner seal/pancake boot
• Dual boot design protects against road grime, oil, gas, engine fluids, and extreme temperatures

Complete Kit Includes:

• Upper and lower ball joints for both driver and passenger sides
• Grade 8 mounting hardware for reliable installation
• Castle nuts, c-clips, and cotter pins
• Zerk fittings for proper maintenance and lubrication

Built to exceed OE specifications, these heavy-duty ball joints deliver superior performance and extended service life for demanding applications. The combination of premium materials and precision manufacturing ensures reliable operation under the toughest conditions.