Cusco Rear Differential Carrier Brace — Fits Subaru STi GRB/GVB/VAB & Forester SJ5/SJG

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SKU: CUS6A1 489 A
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About Cusco Cusco Japan engineers the strut-tower braces, sway bars, ...Read More

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Sale price$173.44 Regular price$185.00
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Car Wheel Size Chart

Wheel Diameter (inches) Tire Width (mm) Aspect Ratio Rim Width (inches)
14185655.5
15195606.0
16205556.5
17215507.0
18225457.5
19235408.0
20245358.5

Note: Wheel and tire sizes vary by car make and model. Always consult your vehicle’s manufacturer for exact specifications.

How to Read Tire Size

Example: 225/45R17 means:

  • 225 = Tire width in mm
  • 45 = Aspect ratio (height as % of width)
  • R17 = Rim diameter in inches

Product Details

Product Description
Part Numbers
Sizing & Fit

About Cusco

Cusco Japan engineers the strut-tower braces, sway bars, alignment correction, and limited-slip differentials that power JDM and time-attack programs. The brand behind countless Time Attack and grassroots motorsport podiums.

Watch in action

Enhance Drivetrain Stability with Cusco

The Cusco Rear Differential Carrier is designed to reinforce the rear subframe and differential mounting points on various Subaru performance models, including the STi (GRB/GVB/VAB) and the Forester (SJ5/SJG). By reducing unwanted movement in the rear differential under heavy acceleration and cornering, this brace ensures that power is efficiently transferred to the wheels.

Technical Advantages

  • Reinforces the rear differential mounting assembly
  • Minimizes drivetrain flex during aggressive driving
  • Improves power delivery and throttle response
  • Constructed from high-durability materials
  • Direct bolt-on installation for specific Subaru chassis

Subaru's rear differential is subject to significant torque loads, which can lead to chassis flex and a loss of power transfer efficiency. The Cusco Rear Differential Carrier acts as a structural bridge, stiffening the rear end to provide a more direct and responsive driving feel. This is an ideal upgrade for enthusiasts who have increased their vehicle's power output or who frequently participate in track days and autocross events. By stabilizing the differential, you reduce the risk of drivetrain vibration and improve overall vehicle traction. Enhance your Subaru's drivetrain performance and reliability with high-quality components from GGCRACING.

Product Details

Product Description
Part Numbers
Sizing & Fit

About Cusco

Cusco Japan engineers the strut-tower braces, sway bars, alignment correction, and limited-slip differentials that power JDM and time-attack programs. The brand behind countless Time Attack and grassroots motorsport podiums.

Watch in action

Enhance Drivetrain Stability with Cusco

The Cusco Rear Differential Carrier is designed to reinforce the rear subframe and differential mounting points on various Subaru performance models, including the STi (GRB/GVB/VAB) and the Forester (SJ5/SJG). By reducing unwanted movement in the rear differential under heavy acceleration and cornering, this brace ensures that power is efficiently transferred to the wheels.

Technical Advantages

  • Reinforces the rear differential mounting assembly
  • Minimizes drivetrain flex during aggressive driving
  • Improves power delivery and throttle response
  • Constructed from high-durability materials
  • Direct bolt-on installation for specific Subaru chassis

Subaru's rear differential is subject to significant torque loads, which can lead to chassis flex and a loss of power transfer efficiency. The Cusco Rear Differential Carrier acts as a structural bridge, stiffening the rear end to provide a more direct and responsive driving feel. This is an ideal upgrade for enthusiasts who have increased their vehicle's power output or who frequently participate in track days and autocross events. By stabilizing the differential, you reduce the risk of drivetrain vibration and improve overall vehicle traction. Enhance your Subaru's drivetrain performance and reliability with high-quality components from GGCRACING.

Product Details

Product Description

About Cusco

Cusco Japan engineers the strut-tower braces, sway bars, alignment correction, and limited-slip differentials that power JDM and time-attack programs. The brand behind countless Time Attack and grassroots motorsport podiums.

Watch in action

Enhance Drivetrain Stability with Cusco

The Cusco Rear Differential Carrier is designed to reinforce the rear subframe and differential mounting points on various Subaru performance models, including the STi (GRB/GVB/VAB) and the Forester (SJ5/SJG). By reducing unwanted movement in the rear differential under heavy acceleration and cornering, this brace ensures that power is efficiently transferred to the wheels.

Technical Advantages

  • Reinforces the rear differential mounting assembly
  • Minimizes drivetrain flex during aggressive driving
  • Improves power delivery and throttle response
  • Constructed from high-durability materials
  • Direct bolt-on installation for specific Subaru chassis

Subaru's rear differential is subject to significant torque loads, which can lead to chassis flex and a loss of power transfer efficiency. The Cusco Rear Differential Carrier acts as a structural bridge, stiffening the rear end to provide a more direct and responsive driving feel. This is an ideal upgrade for enthusiasts who have increased their vehicle's power output or who frequently participate in track days and autocross events. By stabilizing the differential, you reduce the risk of drivetrain vibration and improve overall vehicle traction. Enhance your Subaru's drivetrain performance and reliability with high-quality components from GGCRACING.

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