When it comes to suspension technology, few names carry as much weight as Specialty Products Company (SPC). For decades, the Colorado-based manufacturer has set the standard in suspension components and alignment solutions for passenger vehicles, motorsports, and hardcore off-road applications. But in true SPC fashion, “good enough” is never the benchmark. The company’s latest innovation—the Builder’s Series Ball Joints—is proof that SPC continues to raise the bar for builders, fabricators, and aftermarket manufacturers.

Not An OE Replacement—A True Fabricator’s Tool

Unlike conventional replacement ball joints, SPC’s Builder’s Series is purpose-built for custom-fabricated suspension projects. These ball joints are designed to integrate seamlessly into aftermarket upper control arms or one-off builds that rely on modern knuckle configurations. By targeting fabricators rather than focusing on OE replacement parts, SPC has created a product that solves real-world challenges faced by builders tackling custom suspension geometries.

Engineering Excellence At The Core

The standout feature of this new design is SPC’s use of a one-piece polymer race paired with a specially coated ball stud. Together, they deliver exceptionally low turning torque and buttery-smooth operation—a leap forward compared to older, high-friction ball joint designs.

SPC also tackled one of the greatest enemies of ball joint longevity: contamination. The all-new boot seal system is engineered to keep dirt, water, and trail grime out, while a specially formulated grease works overtime to extend service life. Combined with the brand’s reputation for maintenance-free performance, these new joints provide lasting durability, even under punishing off-road conditions.

Ball Joints Built For Extreme Articulation

Off-road suspensions demand more than durability—they need flex. SPC answered that call with a ball joint that delivers up to 80 degrees of articulation, a critical advantage for today’s long-travel and high-articulation suspension setups. Add in forged steel construction, and it’s clear these ball joints are built for rugged dependability in the harshest environments.

Ball Joints Assembled In The USA, Backed By Innovation

Like every SPC product, the Builder’s Series Ball Joint is designed, engineered, and assembled in Colorado. This not only ensures quality control but also reinforces SPC’s commitment to American engineering and manufacturing. The company even provides .STP files and technical sheets so fabricators can easily integrate these joints into CAD-based custom projects or aftermarket production runs.

The Bottom Line

SPC’s Builder’s Series Ball Joint isn’t just an upgrade—it’s a new tool for the off-road aftermarket. By combining smooth operation, extreme articulation, contamination resistance, and robust construction, SPC has delivered a solution that caters directly to the needs of fabricators and suspension designers. For anyone building custom arms or tackling unique suspension projects, this is the next-generation ball joint you’ve been waiting for.

For more details, technical data, or to start designing with SPC’s latest innovation, visit Specialty Products Company’s website.

Fitments Available Now

SPC #15220

• INFINITI: QX56 2004 – 2013
• INFINITI: QX80 2014 – 2024
• Nissan: Armada 2005 – 2024
• Nissan: Frontier 2005 – 2025
• Nissan: Pathfinder 2005 – 2012
• Nissan: TITAN 2004 – 2024
• Nissan: Xterra 2005 – 2015
• Suzuki: Equator 2009 – 2012
• Toyota: 4Runner 1996 – 2002
• Toyota: Sequoia 2001 – 2007
• Toyota: Tacoma 1995 – 2023
• Toyota: Tundra 2000 – 2006

SPC #15228

• Ford: F-150 2021 – 2025
• Ford: F-150 Lightning 2022 – 2025

Coming Soon

SPC #15221 

• Lexus: GX460 2010 – 2023
• Lexus: GX470 2003 – 2009
• Lexus: LX470 1998 – 2007
• Lexus: LX570 2008 – 2021
• Toyota: 4Runner 2003 – 2024
• Toyota: FJ Cruiser 2007 – 2014
• Toyota: Land Cruiser 1998 – 2021
• Toyota: Sequoia 2008 – 2022
• Toyota: Tundra 2007 – 2021

SPC #15222       

• Ford: Bronco 2021 – 2025

SPC #15223   

• Chevrolet: Colorado 2015 – 2022
• GMC: Canyon 2015 – 2022

SPC #15224    

• Ford: Ranger 2020 – 2023

SPC #15225   

• Ford: Expedition 2007 – 2017
• Ford: F-150 2004 – 2020
• Lincoln: Mark LT 2006 – 2008
• Lincoln: Navigator 2007 – 2017

SPC #15226  

• Toyota: Sequoia 2023 – 2025
• Toyota: Tundra 2022 – 2025

SPC #15227  

• Ford: Ranger 2019 – 2020