RockJock

RockJock 4x4 is a premier American manufacturer of high-performance Jeep suspension and steering systems, founded by industry legend John Currie and built on decades of off-road racing, rock crawling, and suspension engineering expertise. As part of the John Currie Performance Group, RockJock designs and manufactures its components in the USA, specializing in complete suspension systems, sway bars, steering solutions, and heavy-duty drivetrain upgrades engineered to improve articulation, handling, and durability in extreme off-road conditions. Known for innovations like the Antirock sway bar system and Johnny Joint suspension technology, RockJock products are designed for precise fitment and real-world performance across Jeep Wrangler, Gladiator, Cherokee, and other 4x4 platforms. Trusted by competitive racers, trail builders, and serious off-road enthusiasts, RockJock 4x4 continues to set the benchmark for strength, reliability, and performance-driven suspension engineering.