Built to handle the extreme torque and front-end weight of Ford’s diesel and heavy-duty trucks, the Apex Chassis Super HD Lower Ball Joint is engineered for maximum strength, precision, and long-lasting performance. Whether you are hauling, towing, or working hard on or off-road, this joint keeps your suspension tight, stable, and responsive under the toughest conditions.

Each joint is constructed from forged SAE 1045 solid steel for unmatched structural integrity and features a hot-forged SAE 4140 Chromoly ball stud—polished and heat-treated to provide exceptional strength and wear resistance. The military-grade acetal bearing ensures smooth articulation and durability, engineered to handle the punishing loads of heavy-duty Ford applications where failure is not an option.

Precision CNC machining, induction heat treatment, and an E-coated finish guarantee corrosion resistance and long-term reliability. A compression-style CR rubber boot seals out contaminants while retaining lubrication, and the pre-threaded zerk housing makes servicing fast and simple. With gull-wing grease grooves, pre-greased internals, and Grade 8 hardware, the Apex Super HD Lower Ball Joint delivers professional-grade performance and reliability for Ford diesel trucks that demand the best.

HOUSING

• SAE 1045 Solid Steel Forged Housing: This is unequivocally the best carbon alloy steel for this application.
• Knurled Housings: The preferred design for aftermarket installations.
• CNC Machined Housing: Make our parts and bearings dimensionally perfect, eliminating any die wear issues.

BALL STUDS

• SAE 4140 hot forged Chromoly Ball Studs: For the strongest possible metallurgy.
• Induction Heat Treated Ball Studs: Provides a very precise heat treatment to the exact depth and location we want it.
• Polished Ball Studs: Are built like an anti-friction bearing with extremely precise tolerances.
• Rolled Threads: Are made by pressing the shape of the threads into the ball stud instead of cutting. This strengthens the threads instead of weakening them and allows for easy movement of hardware. This ain't no Ikea furniture!
• Step Threads : allows for very easy movement of hardware on install and superior holding when torqued (installer choice).

BEARING DESIGN

• Military Grade Acetal Bearing: The same bearing material spec'd by the US military for Hummer ball joints. This material is: dimensionally stable (doesn't expand or contract with hot or cold, water or oil absorption), it can be polished smooth as steel, is anti-friction, Doesn't wear itself out under load like metal on metal, and can take an absolute pounding.

BOOTS

• CR Rubber Boots: The most durable material for undercar applications. Resistant to deterioration from road level ozone, oil/gas/engine fluids and extreme heat or cold.
• Compression Boot

HARDWARE

• Grade 8 - Class 10.9 Hardware: Superior tensile strength
• Castle Nut: Industry standard where high vibration loads occur.

LUBRICATION

• Pre threaded Zerk Housing: If you have ever installed a MOOG Ball Joint without a pre-threaded zerk fitting you will understand what a simple but great feature this is. Another installer fav.
• Greaseable: Because it should be.
• Pre-Greased: Just in case you forget, we have you covered.
• Gull Winged Grease Grooves : Allows for improved lubrication disbursement around the ball stud.
• Zerk Fittings : Included for every application.