Hardrace Roll Center Adjuster – Honda Integra DC5 Facelift / Type S (6878)

Product Overview

When the late-generation Honda Integra DC5 (such as the Type S or late-model facelift iterations) is lowered on aftermarket coilovers or sport springs, the factory front MacPherson strut geometry is compromised. This vertical displacement pushes the front lower control arms past their horizontal plane, causing them to point upward. The Hardrace Roll Center Adjuster – Honda Integra DC5 (6878) extended ball joint kit is the definitive engineering solution designed to mechanically recalculate and lower the vehicle’s roll center.

This extended front ball joint set alters the structural pivot height of the front steering knuckles relative to the lower control arms. By returning the lower arms back to their engineered horizontal operating angles, this kit eliminates sudden wheel angle variations over bumps, heavily mitigates body roll, and ensures an uncompromised tire contact patch during high-load performance track work.

Key Features & Benefits

• Optimizes Lowered Suspension Geometry: Extends the pivot point by an effective +10mm, lowering the physical roll center closer to the vehicle’s center of gravity to minimize lateral chassis weight transfer.

• Eradicates Cornering Bump Steer: Eliminates unwanted toe alignment changes caused by standard suspension travel on lowered setups, restoring predictable high-speed tracking.

• High-Tensile Extended Ball Joint Studs: Manufactured using heat-treated chrome-molybdenum steel alloys designed to withstand intense multi-axis loading and extreme racing stress.

• Low-Friction Internal Spheroid Sockets: Features precision-engineered internal seats that provide fluid, low-friction articulation across the entire steering lock range without structural play.

• High-Density Thermoplastic Dust Boots: Equipped with resilient, tight-sealing synthetic covers that isolate grease and protect internal components against moisture, brake heat, and road grime.

• Facelift-Specific Engineering: Precision-molded to match the distinct 44mm housing outer diameter and M14 ball stud interface unique to late-model knuckles.

Technical Specifications

Comprehensive Platform Compatibility

This specific Part Number 6878 extended roll center ball joint kit features a distinct 44mm knuckle insert diameter and an M14 ball stud taper profile engineered for facelift variants of the DC5 sports chassis:

• Acura RSX Type-S (Facelift Models, 2005–2006 Chassis)

• Honda Integra Type S (Facelift Models, 2004–2006 DC5 Chassis with K20A Engine)

• Application Critical Note: Unlike early DC5 models or specific JDM Type R applications utilizing part number 6807, the 6878 kit features specific structural changes accommodating the updated steering knuckles introduced during the mid-cycle design facelift. Always cross-verify individual hub taper and carrier dimensions before installation.

The Mechanical Advantage: Re-aligning the Front Roll Center

The MacPherson strut configuration on the front of the DC5 platform is highly sensitive to modifications in ride height. Lowering the chassis moves the inner control arm pivot point upward relative to the outer ball joint. This inverted geometry raises the front roll center away from the road surface, drastically increasing the roll center leverage arm. As a consequence, the vehicle experiences more severe body roll than it would at factory height, despite running stiffer performance springs.

Worse yet, this geometric shift forces the steering tie rods and control arms out of parallel synchronization. When the tire compresses over a road irregularity, the tracking angle deflects unexpectedly, introducing heavy bump steer.

The Hardrace 6878 Roll Center Adjusters extend the distance from the steering knuckle to the lower control arm. This extended length pushes the arm back down into its linear operating plane. By restoring the correct architectural angles, you reclaim high-speed steering feedback, stabilize the front tire contact patch, and eliminate sudden suspension deflection across mid-corner pavement variations.

Professional Machine Press Installation at JDMaster

Get it Fitted by the Specialists: Replacing lower ball joints on the DC5 chassis requires releasing the steering knuckles from the axle assemblies and utilizing an industrial hydraulic press with specialized adapter rings. Utilizing improper impact tools can warp the new ball joint housing or destroy the internal low-friction spheroid seats.

Skip the driveway complication and arrange an installation at the JDMaster.net workshop.

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.