Synergy 4120 Dana 30/44 Heavy Duty Front Ball Joint Set 2 Uppers 2 Lowers

Designed to replace the factory ball joints that are prone to premature wear on lifted vehicles with large off-road tires. Fully greasable metal on metal design with machined bearing housing made from sintered graphite, bronze, and 1045 steel for a strong, smooth, bearing surface. Ball joint stud made from 4140 steel with an induction heat treated bearing surface for smooth operation and maximum life. Single Set includes: (1) upper, (1) lower.

• Uses a larger stud than stock
• Ball joint boot is made from tear/wear resistant silicone polyurethane
• Completely eliminates the stock style nylon liner for improved performance and durability
• Outperforms the factory ball joint assembly and includes all necessary hardware for installation
• Complete Set includes: 2 Single Sets