Hardrace Rear Lower Arm Bushing – Honda (6389F)

Product Overview

On golden-era Hondas, the rear lower control arms house three separate bushing points per side (inner subframe, shock mount, and outer trailing arm connection). When utilizing original rubber or even aftermarket polyurethane, these six points compress unevenly under heavy cornering loads. The Hardrace Rear Lower Arm Bushing – Honda (6389F) kit is a true motorsport-grade, solid-state spherical upgrade designed to lock out mechanical deflection entirely.

This 6-piece full axle set replaces every bushing in your original rear lower control arms with Hardrace’s advanced pillow ball (uniball) joints. By swapping out flexible materials for solid metal spherical bearings, this kit ensures your rear tracking lines remain completely static, delivering instant cornering feedback and laser-sharp stability on the street or circuit.

Key Features & Benefits

• Complete 6-Piece Full Axle Kit: Replaces all inner, outer, and shock-mount bushings across both rear lower control arms for uniform, flex-free performance.

• Zero Geometry Deflection: Keeps your rear toe and camber tracking mathematically static under severe lateral and vertical tracking forces.

• Motorsport-Grade Spherical Bearings: Provides completely fluid, binding-free suspension travel, forcing your coilovers to handle dampening duties instantly.

• Fully Booted TPV Dust Seals: Enclosed within heavy-duty Thermoplastic Vulcanizate (TPV) rubber boots to seal out moisture, track grime, salt, and oil, heavily extending bearing lifespan.

• Direct Mechanical Driver Feedback: Eradicates the vague, isolating cushion of factory rubber links to instantly communicate rear-tire slip angles straight to the cockpit.

• Advanced Self-Lubricating Liners: Features precise high-molecule polymer internal tubes combined with specific metal alloys to minimize friction and prevent premature mechanical wear.

• OEM Direct Press-Fit Design: Machined to strict original factory housing specifications for a reliable press-fit into standard steel rear lower arms.

Technical Specifications

Applications

This specific Part Number 6389F pillow ball kit is engineered to press directly into original stamped steel or matching aftermarket rear lower control arms across the following double-wishbone Honda platforms:

• Honda Civic 4th Gen (1988–1991 EE / EF / ED Hatchback, Sedan & CRX Models with Eyelet-Style Shock Mounts)

• Honda Civic 5th Gen (1992–1995 EG / EH / EJ1 / EJ2 All Models)

• Honda Civic 6th Gen (1996–2000 EK3 / EK4 / EJ9 / EM1 Non-Type-R Models)

• Honda Integra 3rd Gen (1994–2001 DC2 / DC4 / DB7 / DB8 Models – For Eyelet-Style USDM/International Non-Type-R lower control arms only)

Fitment Note: This 6-piece kit is strictly designed for eyelet-style rear lower suspension arms (where the shock bottom wraps over a bushing pin). It is not compatible with JDM/UKDM Integra Type R (DC2) fork-style rear lower control arms. Please verify your rear shock mount configuration on JDMaster.net before checking out.

The Mechanical Advantage: The Power of 3-Point Spherical Rigidity

Upgrading just the inner or outer bushing on a classic Honda rear control arm leaves weak links in the suspension chain. Under hard track cornering or aggressive transitions, the middle shock-mount bushing and opposing ends compress under leverage. This elastic deflection forces the rear wheels to twist horizontally, triggering unexpected toe changes mid-corner—the primary cause of snappy rear rotation and traction breakdown.

The Hardrace 6389F Pillow Ball kit delivers a comprehensive zero-flex solution. By replacing all three connection points per side with high-tensile spherical joints, the arm can pivot smoothly on a fixed vertical axis without shifting side-to-side. Furthermore, because Hardrace fully seals these motorsport-grade bearings inside thick, weather-proof TPV rubber boots, they are heavily protected against road grit. You get pure race-car handling and consistent lap times season after season without the rapid wear common to open, unbooted track bearings.

Professional Hydraulic Pressing at JDMaster

Get it Fitted by the Experts: We offer comprehensive professional workshop installation and precision bushing press services right inside our state-of-the-art JDMaster.net workshop.

Contact us today to secure your workshop appointment!

Warranty

The warranty on Hardrace products depends on the type of product, with a minimum warranty period of 2 years. This warranty does not cover damage caused by a car crash, improper use, negligence or normal wear and tear.