Hardrace Rear Trailing Arm Bushing – Honda (6106)
Product Overview
On classic independent trailing arm rear suspension layouts, the large Rear Trailing Arm (RTA) bushing is the primary anchor controlling the rear axle’s fore, aft, and lateral tracking movement. Because this massive bushing carries the blunt of heavy cornering forces and longitudinal braking stress, the factory rubber splits, dry-rots, and tears away from its inner steel pin. Once detached, the trailing arm shifts uncontrollably under load—triggering a terrifying phenomenon known as rear-end steering or snap oversteer.
The Hardrace Rear Trailing Arm Bushing – Honda (6106) kit is a definitive, heavy-duty chassis correction solution. Available at JDMaster.net, this premium 2-piece performance set replaces your loose, torn original equipment anchors with solid, high-durometer vulcanized hardened rubber bushings. Unlike aftermarket polyurethane alternatives that lack the proper multi-axis compliance required by this specific pivot point—leading to suspension binding, torn subframes, and harsh squeaking—Hardrace utilizes a specialized high-density elastomeric core. It locks down dynamic alignment shifting while allowing the trailing arm to pivot cleanly through its engineered vertical stroke.
Key Features & Benefits
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Arrests Destructive Rear-End Play: Heavily restrains un-engineered fore and aft trailing arm movement, eliminating erratic rear-end self-steering under heavy braking and cornering loads.
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Signature High-Durometer Harden Rubber: Crafted from an ultra-dense, non-voided performance compound engineered to resist extreme multi-axis shear stress without cracking.
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Eliminates Dynamic Toe Drift: Prevents the rear suspension from dynamically swinging toe-out during hard cornering transitions, keeping your tail-end tracking stable and predictable.
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Proper Multi-Axis Pivoting Elasticity: Specifically engineered to deflect slightly along secondary twisting axes to prevent suspension binding, a common flaw of solid polyurethane RTA inserts.
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Zero-Maintenance Matrix Core: Outfitted with an anti-friction, chemically bonded structural matrix that requires absolutely no periodic grease, staying completely silent and squeak-free.
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Direct O.E. Press-Fit Dimensional Sleeves: Precision CAD-molded with standard diameter outer shells to press natively into your factory stamped-steel trailing arms.
Technical Specifications
| Feature | Specification |
| Brand | Hardrace |
| Part Number / SKU | 6106 |
| Product Type | Heavy-Duty Reinforced Rear Trailing Arm (RTA) Bushings |
| Material Base | High-Density Solid Performance Harden Rubber & Seamless Steel Shell |
| Core Design | Non-Voided Performance Core with Integrated Multi-Axis Pin |
| Quantity in Set | 2 Pieces / Full Rear Axle Set (Left and Right Trailing Arm Bushings) |
| Chassis Location | Primary Front Pivot Position of the Rear Trailing Arm Assembly |
Applications
This high-rigidity Part Number 6106 trailing arm bushing set features specialized casing dimensions designed for a direct press-fit into the following vehicle architectures:
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Honda Civic 4th Gen (1988–1991 EC / ED / EE / EF Chassis)
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Honda Civic 5th Gen (1992–1995 EG / EH / EJ1 / EJ2 Chassis)
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Honda Civic 6th Gen (1996–2000 EK3 / EK4 / EK9 / EJ6 / EJ7 / EJ8 / EJ9 / EM1 Chassis)
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Honda CRX 2nd Gen (1988–1991 EE8 / ED9 / EF8 Chassis Variants)
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Honda Civic Del Sol (1992–1998 EG1 / EG2 / EH6 Chassis Profiles)
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Acura / Honda Integra 3rd Gen (1994–2001 DC2 / DC4 / DB7 / DB8 Chassis Models — Fits all configurations including RS, LS, GS, GS-R, and Type R)
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Acura / Honda Integra 2nd Gen (1990–1993 DA5 / DA6 / DA9 / DB1 / DB2 Chassis Profiles)
The Mechanical Advantage: Why Polyurethane Fails Where Harden Rubber Excels
In classic Honda multi-link and trailing arm suspension layouts, the RTA bushing acts as a complex, three-dimensional pivot. As the rear tire moves up and down over a bump, the trailing arm doesn’t just rotate vertically; it slightly twists and articulates along lateral lines as dictated by the upper control arm and toe link. Factory bushings use large open-air voids to allow this twist, but the soft rubber completely deflects under high cornering forces, introducing dynamic alignment wander.
When looking for an upgrade, many drivers mistakenly choose hard polyurethane bushings. Because polyurethane is inherently rigid and cannot twist across multiple axes, it locks the trailing arm in place. This rigidity causes severe suspension binding, forcing the trailing arm to fight against the rest of the suspension links. This binding degrades your ride quality, induces sudden snap oversteer, and often tears the structural mounting brackets right out of the car’s unibody sheet metal.
The Hardrace 6106 Harden Rubber Bushing completely avoids this engineering bottleneck. By packing a high-density, solid vulcanized performance rubber compound into the outer casing shell, it eliminates the unneeded fore/aft play to maintain strict alignment control under load. Crucially, the elastomeric compound preserves the natural multi-axis flexibility needed to absorb lateral twisting forces. Your suspension travels cleanly through its intended mechanical stroke, tracking perfectly flat through high-speed switchbacks.
Professional Hydraulic Installation Tooling at JDMaster
Get it Fitted by the Specialists: Extracting and installing the massive rear trailing arm bushing is an advanced mechanical challenge. Attempting to hammer, torch, or chisel out the old bushings frequently warps or twists the stamped-steel trailing arm housing, ruining the trailing arm’s integrity. Furthermore, the inner steel mounting pins must be pressed in at a very specific clocking angle matching your vehicle’s ride height; improper pin alignment twists the rubber core constantly at rest, causing the new bushing to tear prematurely.
Protect your suspension investment and book an installation lift slot at our specialized JDMaster.net workshop. Our factory-trained suspension technicians utilize a dedicated, on-car hydraulic trailing arm bushing removal and installation tool. This specialized gear allows us to cleanly swap your bushings to exact depth parameters and lock in the proper resting clock angle under natural ride height load variables.
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.
Warranty by product type
| Rubber bushes | 5 years |
| Spherical bushes | 2 years |
| Adjustable arms with rubber inserts | 5 years |
| Adjustable arms with spherical inserts | 2 years |
| Engine mounts | 5 years |
| Sway bars | Lifetime warranty |
| Bushes and endlinks | 5 years |
| Billet inserts | Lifetime warranty |
| Chassis brace | Lifetime warranty |
| Ball joints/tie rods | 2 years |
| Weight | 1.628 kg |
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| Dimensions | 20.3 × 15.2 × 10 cm |
| pa_fitments | ED, EE, EF, EH, EJ1/2, EJ6/7/8/9, EM1, Honda Civic 4th 1988-1991 EC, Honda Civic 5th 1992-1996 EG, Honda Civic 6th 1996-2000 EK3/4/5/9, Honda CRX 2nd EF6/7/8, Honda Integra DC2 1994-2001 |









