Whiteline Rear Crossmember Outer Mount Insert Kit — Fits 03+ Pontiac GTO

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SKU: WHLW92350
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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 Whiteline

Whiteline is the Australian leader in handling-focused suspension hardware — anti-sway bars, control arm bushings, alignment correction kits, and limited-slip differentials. Engineered for Subaru WRX/STI, Mitsubishi EVO, and modern performance platforms.

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Maximize Your Pontiac GTO's Performance with Whiteline's Rear Crossmember Mount Kit

Unlock the full potential of your 2003 and later Pontiac GTO with the Whiteline Rear Crossmember Outer Mount Insert Kit. This advanced kit is engineered to drastically reduce the misalignment and excessive movement commonly found in the rear subframe. By providing a more rigid mounting solution for the rear crossmember, it ensures that your GTO's rear end remains stable and predictable, even under high-performance driving conditions. This translates to a more positive feel, improved traction, and enhanced overall handling.

Key Benefits for Your GTO:

  • Reduces Rear Subframe Flex: Minimizes unwanted movement and flex in the rear crossmember for greater stability.
  • Enhances Handling and Grip: Provides a more direct connection to the road, improving cornering performance and traction.
  • Improves Power Delivery: Ensures efficient transfer of power to the wheels by maintaining proper driveline geometry.
  • Durable and Reliable: Built with high-quality materials designed to withstand the demands of performance driving.

This Whiteline kit is specifically designed for the 2004-2006 Pontiac GTO, offering a direct fit and a significant upgrade over stock components. Whether you're hitting the track, participating in autocross events, or simply seeking a more engaging driving experience on the street, this rear crossmember mount insert kit is an essential modification. It addresses a common weak point in the GTO's chassis, allowing you to push your car harder with confidence.

Invest in superior handling and performance for your Pontiac GTO. Get the Whiteline Rear Crossmember Outer Mount Insert Kit today, exclusively at GGCRACING.

Vehicle Fitment

Years Make Model Trim
2004-2006 Pontiac GTO Base

Product Details

Product Description
Part Numbers
Sizing & Fit

About Whiteline

Whiteline is the Australian leader in handling-focused suspension hardware — anti-sway bars, control arm bushings, alignment correction kits, and limited-slip differentials. Engineered for Subaru WRX/STI, Mitsubishi EVO, and modern performance platforms.

Watch in action

Maximize Your Pontiac GTO's Performance with Whiteline's Rear Crossmember Mount Kit

Unlock the full potential of your 2003 and later Pontiac GTO with the Whiteline Rear Crossmember Outer Mount Insert Kit. This advanced kit is engineered to drastically reduce the misalignment and excessive movement commonly found in the rear subframe. By providing a more rigid mounting solution for the rear crossmember, it ensures that your GTO's rear end remains stable and predictable, even under high-performance driving conditions. This translates to a more positive feel, improved traction, and enhanced overall handling.

Key Benefits for Your GTO:

  • Reduces Rear Subframe Flex: Minimizes unwanted movement and flex in the rear crossmember for greater stability.
  • Enhances Handling and Grip: Provides a more direct connection to the road, improving cornering performance and traction.
  • Improves Power Delivery: Ensures efficient transfer of power to the wheels by maintaining proper driveline geometry.
  • Durable and Reliable: Built with high-quality materials designed to withstand the demands of performance driving.

This Whiteline kit is specifically designed for the 2004-2006 Pontiac GTO, offering a direct fit and a significant upgrade over stock components. Whether you're hitting the track, participating in autocross events, or simply seeking a more engaging driving experience on the street, this rear crossmember mount insert kit is an essential modification. It addresses a common weak point in the GTO's chassis, allowing you to push your car harder with confidence.

Invest in superior handling and performance for your Pontiac GTO. Get the Whiteline Rear Crossmember Outer Mount Insert Kit today, exclusively at GGCRACING.

Vehicle Fitment

Years Make Model Trim
2004-2006 Pontiac GTO Base

Product Details

Product Description

About Whiteline

Whiteline is the Australian leader in handling-focused suspension hardware — anti-sway bars, control arm bushings, alignment correction kits, and limited-slip differentials. Engineered for Subaru WRX/STI, Mitsubishi EVO, and modern performance platforms.

Watch in action

Maximize Your Pontiac GTO's Performance with Whiteline's Rear Crossmember Mount Kit

Unlock the full potential of your 2003 and later Pontiac GTO with the Whiteline Rear Crossmember Outer Mount Insert Kit. This advanced kit is engineered to drastically reduce the misalignment and excessive movement commonly found in the rear subframe. By providing a more rigid mounting solution for the rear crossmember, it ensures that your GTO's rear end remains stable and predictable, even under high-performance driving conditions. This translates to a more positive feel, improved traction, and enhanced overall handling.

Key Benefits for Your GTO:

  • Reduces Rear Subframe Flex: Minimizes unwanted movement and flex in the rear crossmember for greater stability.
  • Enhances Handling and Grip: Provides a more direct connection to the road, improving cornering performance and traction.
  • Improves Power Delivery: Ensures efficient transfer of power to the wheels by maintaining proper driveline geometry.
  • Durable and Reliable: Built with high-quality materials designed to withstand the demands of performance driving.

This Whiteline kit is specifically designed for the 2004-2006 Pontiac GTO, offering a direct fit and a significant upgrade over stock components. Whether you're hitting the track, participating in autocross events, or simply seeking a more engaging driving experience on the street, this rear crossmember mount insert kit is an essential modification. It addresses a common weak point in the GTO's chassis, allowing you to push your car harder with confidence.

Invest in superior handling and performance for your Pontiac GTO. Get the Whiteline Rear Crossmember Outer Mount Insert Kit today, exclusively at GGCRACING.

Vehicle Fitment

Years Make Model Trim
2004-2006 Pontiac GTO Base

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