The Nissan GT-R R35 is capable of putting substantial power through its rear suspension, making rear alignment and suspension geometry increasingly important as a build moves beyond the factory configuration. For drag racing, road racing, and other high-performance applications, the ability to precisely adjust the rear suspension can make a significant difference in how the rear tires interact with the pavement.

The SBD Rear Traction Arm Kit with Pillowball Bushings R35-SU-ARM is a fully adjustable six-piece rear suspension package designed specifically around this requirement. The kit combines adjustable rear camber arms, toe control arms, and traction arms with upgraded pillowball bushings to provide a more direct and adjustable connection between the suspension and chassis.

Designed for high-performance Nissan GT-R R35 applications, the SBD kit is particularly suited to vehicles using wider-than-stock aftermarket wheels and builds where rear suspension geometry needs to be carefully dialed in.

Available through Extreme Power House (XPH), the R35-SU-ARM provides GT-R owners with a comprehensive rear suspension adjustment package for demanding drag racing and road racing applications.

Six-Piece Rear Suspension Package

Rather than replacing only one rear suspension arm, the SBD kit addresses several of the key adjustment points in the R35's rear suspension.

The complete six-piece package includes:

• Left and right rear camber arms
• Left and right rear toe control arms
• Left and right rear traction arms

This combination allows multiple aspects of the rear suspension geometry to be adjusted together.

For high-performance applications, this is important because changing one alignment parameter can influence how the tire sits relative to the road and how the suspension behaves through its range of motion. Having adjustable components across the rear suspension gives the owner significantly more control over the final setup.

Fully Adjustable Rear Suspension Geometry

The primary purpose of the SBD R35-SU-ARM is adjustability.

Factory suspension arms are designed around a broad range of street-driving requirements. A dedicated drag or road racing vehicle, however, can have very different requirements depending on power level, tire selection, wheel width, ride height, suspension setup, and intended use.

The adjustable SBD arms provide the ability to fine-tune the rear suspension geometry around the specific configuration of the vehicle.

This can help owners optimize:

• Rear camber settings
• Rear toe settings
• Rear traction-arm geometry
• Rear tire contact patch
• Suspension geometry for wider wheels
• Overall rear suspension alignment

The objective is to give the GT-R owner more control over how the rear tires are positioned and how the suspension works under high-performance driving conditions.

Improving Rear Tire Contact Patch

One of the central goals of the SBD traction arm system is helping the owner maximize the usable rear tire contact patch.

For a high-powered GT-R, tire contact is especially important during hard acceleration. Drag racing places substantial demands on the rear tires as the vehicle attempts to transfer power to the ground, while road racing introduces additional requirements as the suspension works through cornering, braking, and acceleration loads.

The adjustable rear arms allow alignment settings to be tailored to the vehicle's setup rather than relying exclusively on the factory adjustment range.

This makes the kit particularly relevant for GT-R builds where optimizing rear tire positioning is an important part of the overall suspension setup.

Upgraded Pillowball Bushings

The SBD arms use pillowball bushings in place of the softer factory-style rubber bushing arrangement.

A pillowball provides a more direct mechanical connection between the suspension component and its mounting point. This can reduce the compliance associated with conventional rubber bushings and provide more precise control over suspension movement.

For a performance-oriented R35, the more direct connection can be particularly useful when precise alignment and suspension response are priorities.

The pillowball design is therefore not simply a hardware change. It forms part of the overall SBD philosophy of reducing unnecessary suspension compliance while increasing adjustment capability.

A More Direct Rear Suspension Connection

Factory rubber bushings have a certain amount of compliance by design. That compliance contributes to the vehicle's street-driving characteristics, but it can also allow suspension components to move under heavy loads.

For drag and road racing applications, excessive or uncontrolled movement can make precise suspension tuning more difficult.

The SBD pillowball-equipped arms provide a more direct connection, helping the adjustable arms maintain their intended position under demanding suspension loads.

This can give the driver and tuner a more consistent platform from which to establish rear alignment settings.

Designed for Drag Racing and Road Racing

The R35-SU-ARM is designed to serve two demanding forms of performance driving: drag racing and road racing.

While these disciplines place different demands on a vehicle, both benefit from accurate rear suspension geometry.

Drag Racing

During a hard launch, the rear suspension has to manage substantial acceleration forces while the tires attempt to establish maximum traction.

The ability to adjust the rear suspension allows the setup to be tailored around the tire, wheel, ride height, power delivery, and track conditions.

For serious drag-oriented GT-R builds, this level of adjustment can become an important part of the overall chassis setup.

Road Racing

Road racing introduces a different set of requirements. The rear suspension must respond consistently during cornering, braking, acceleration, and transitions.

Adjustable camber, toe, and traction arms provide additional flexibility for establishing an alignment suited to the intended driving environment.

The SBD system can therefore be used as part of a broader road racing suspension setup where precise alignment adjustment is required.

Designed for Wider Aftermarket Wheels

The SBD Rear Traction Arm Kit is particularly suited to GT-Rs using aftermarket wheels wider than stock.

The supplied application guidance specifically recommends the kit for vehicles running 17-inch to 20-inch aftermarket wheels wider than stock, including wheels wider than 10.5 inches.

As wheel and tire configurations become wider, suspension and wheel clearance become increasingly important considerations. The SBD system is designed with these high-performance wheel configurations in mind.

Owners should still verify their specific wheel, tire, suspension, and vehicle configuration before installation.

15 x 12-Inch Wheel Clearance Testing

SBD has also tested the rear traction arms with an aggressive 15 x 12-inch rear wheel configuration.

According to the supplied product information, the SBD Rear Traction Arms have been tested with up to a 6.75-inch backspace without clearance issues.

A 15 x 12-inch wheel with a 6.75-inch backspace corresponds to approximately a 15 x 12 +6 wheel specification.

This information is particularly relevant to GT-R owners building dedicated drag-racing configurations where very wide rear wheels are used.

As always, actual clearance can depend on the complete vehicle configuration, including tire dimensions, ride height, suspension components, wheel design, and other modifications.

Proven on High-Performance GT-R Builds

The SBD Rear Traction Arm Kit has been used on multiple high-performance Nissan GT-R builds, including several 7-second quarter-mile applications.

The supplied product information cites examples including:

• Tom Harrison's GT-R, achieving a 1.21-second 60-foot time and a 7-second quarter-mile pass while running Motec.
• Steve Tasca's GT-R, achieving a 1.23-second 60-foot time and a 7-second quarter-mile pass, and identified in the supplied information as the current EcuTek quarter-mile World Record Holder.
• Chris Riggs' GT-R, achieving a 1.26-second 60-foot time and a 7-second quarter-mile pass while running Motec.

These examples demonstrate the type of high-performance environment in which the SBD suspension components have been utilized. They should not be interpreted as guaranteed results for every vehicle, since drag-racing performance depends on the complete vehicle configuration, including power, transmission, drivetrain, tires, suspension tuning, track conditions, and driver strategy.

Camber Adjustment

The rear camber arms are an important part of the six-piece system.

Camber determines the angle of the wheel relative to the road surface when viewed from the front or rear of the vehicle. Being able to adjust this setting allows the suspension to be configured around the vehicle's intended use.

A drag-oriented setup can have different alignment requirements from a road-racing configuration, while a street-driven GT-R may require another compromise entirely.

The adjustable SBD camber arms provide the hardware necessary to make those changes within the available suspension setup.

Toe Adjustment

The kit also includes adjustable rear toe control arms.

Toe is another critical alignment parameter because it influences how the rear wheels are oriented relative to the vehicle's centerline.

Accurate toe settings can be particularly important on a high-powered GT-R, where rear tire behavior under acceleration and cornering needs to remain predictable.

With adjustable toe control arms included in the same package as the camber and traction arms, the SBD system allows the rear alignment to be approached as a complete setup rather than as isolated adjustments.

Rear Traction Arms

The two rear traction arms complete the six-piece package.

These arms are central to the kit's purpose because they allow the rear suspension geometry to be adjusted around the requirements of a high-performance GT-R.

Combined with the pillowball bushings, the traction arms provide a more direct connection while giving the owner or suspension tuner greater control over the rear suspension configuration.

This is particularly valuable when a vehicle has been modified extensively from its original street configuration.

Why a Complete Six-Piece Kit Matters

Replacing only one adjustable component can provide a limited range of setup changes. The SBD kit instead addresses the three primary arm groups included in the package: camber, toe, and traction.

This creates a more comprehensive rear suspension solution.

The six-piece configuration gives the owner the ability to work with the rear suspension as a complete geometry package, allowing different settings to be coordinated rather than relying on a mixture of factory and aftermarket adjustment components.

For a serious performance build, that flexibility can be especially valuable when suspension settings need to be changed for different tires, wheels, tracks, or driving conditions.

Ideal for High-Power R35 GT-R Builds

The Nissan GT-R is frequently modified well beyond its original factory specification. Increased engine output, upgraded turbochargers, aftermarket wheels and tires, altered ride height, and dedicated drag-racing equipment can all change the demands placed on the chassis.

As the rest of the vehicle evolves, the factory suspension adjustment range may become less suitable for the final configuration.

The SBD R35-SU-ARM addresses that requirement by providing adjustable rear suspension arms and upgraded pillowball bushings in one package.

It is particularly relevant for owners building an R35 around aggressive drag-racing or road-racing requirements.

Installation and Suspension Setup

Because the SBD kit changes suspension components and provides additional adjustment capability, professional installation and alignment are recommended.

After installation, the vehicle should receive a proper four-wheel alignment using the settings appropriate for the intended application.

The final setup can depend on factors such as:

• Wheel width
• Tire size and construction
• Ride height
• Vehicle power level
• Suspension configuration
• Drag-racing or road-racing use
• Desired camber
• Desired toe
• Track conditions

The kit provides the adjustment capability, but the final alignment specifications should be established around the complete vehicle rather than using a generic setting for every GT-R.

SBD R35-SU-ARM Key Features

The SBD Rear Traction Arm Kit with Pillowball Bushings includes:

• Fully adjustable rear suspension system
• Complete six-piece configuration
• Left and right rear camber arms
• Left and right rear toe control arms
• Left and right rear traction arms
• Upgraded pillowball bushings
• Increased rear suspension adjustment capability
• Designed to help optimize rear tire contact patch
• Designed for high-performance Nissan GT-R applications
• Suitable for drag racing
• Suitable for road racing
• Recommended for 17-inch to 20-inch aftermarket wheels wider than stock
• Recommended for wheels wider than 10.5 inches
• Tested with 15 x 12-inch rear wheels
• Tested with up to 6.75-inch backspace on the specified 15 x 12-inch application
• Used on multiple 7-second quarter-mile GT-R builds

Verify Your Wheel and Suspension Configuration

The R35-SU-ARM is intended for performance-focused GT-R applications, but the complete vehicle configuration should always be considered before installation.

Owners using particularly aggressive wheel and tire combinations should verify clearance and suspension compatibility before ordering.

The supplied SBD testing demonstrates compatibility with a 15 x 12-inch wheel using up to 6.75 inches of backspace, but individual vehicles can differ depending on their suspension configuration and other modifications.

Proper fitment verification is especially important on heavily modified R35s.

Upgrade Your R35 GT-R Rear Suspension with SBD

The SBD Rear Traction Arm Kit R35-SU-ARM provides a comprehensive rear suspension solution for Nissan GT-R owners who need more adjustment capability than the factory suspension configuration provides.

With six adjustable arms, upgraded pillowball bushings, and dedicated camber, toe, and traction adjustment, the kit is designed to help enthusiasts precisely configure the rear suspension around their vehicle's wheel, tire, power, and intended driving setup.

Its use on multiple high-performance 7-second GT-R builds further illustrates the type of application for which the system was developed, while the aggressive wheel-clearance testing makes it particularly relevant to GT-Rs running wide aftermarket rear wheels.

For R35 owners building a serious drag-racing or road-racing setup, the SBD R35-SU-ARM Rear Traction Arm Kit is available through Extreme Power House (XPH) as part of XPH's range of Nissan GT-R performance components.

Product Link: https://x-ph.com/sbd-rear-traction-arm-kit-w-pillowball-bushings-r35-su-arm/