Yukon Gear 12921 (YSPBJ-020HDK2) Features:

Superior materials lead to superior performance. When you replace and upgrade your failing OE ball joints with a heavy-duty Yukon unit you get a ball joint built to the highest standards of quality and durability. Its housing is CNC-machined from forged SAE 1045 carbon alloy steel and the ball stud is made from induction heat-treated, hot-forged 4140 chromoly. These ball joints use military-grade acetal bearings because of their advanced anti-friction properties and dimensional stability. Ball joints are only as durable as the protection provided by their rubber boots. Yukon ball joints feature a two-staged approach with a synthetic Neoprene/CR outer boot and an inner seal/pancake boot that safeguard the spherical joint and bucket against gritty road grime, oil, gas, and engine fluids, and extreme temperatures. This kit replaces the upper and lower front ball joints on both sides and includes Grade 8 hardware, castle nuts, c-clips, cotter pins, and zerk fittings.

• Fits AAM 9.25” front differential
• Kit includes 2 upper and 2 lower ball joints and associated small parts
• CNC-machined forged SAE 1045 carbon alloy steel housing ensures longer joint life
• Hot-forged, induction heat-treated 4140 chromoly ball stud produces unrivaled durability
• Features extrusion rolled threads which are significantly stronger than cut-thread construction
• Note: You may experience memory steer during a 300- to 500-mile performance break-in period
• Neoprene-enhanced CR rubber boot and internal seal/pancake boot provide superior sealing against contaminants
• Improved upper bearing design eliminates dreaded Death Wobble
• Greaseable, pre-threaded zerk housing makes lubrication maintenance quick and easy
• Lifetime warranty against manufacturing defects