Flatline Barriers Pre-Cut High Tunnel Floor Insulation Kit — Fits 1981-1987 GM C/K 10-30 Standard Cab

SKU: HMTJ_TABT4015
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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 Flatline Barriers

Flatline Barriers engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Flatline Barriers lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

Advanced High Tunnel Floor Insulation for 1981-1987 GM C/K Standard Cab

Enhance the driving experience in your 1981-1987 GM C/K 10-30 Standard Cab truck with the Flatline Barriers Pre-Cut High Tunnel Floor Insulation Kit. This expertly crafted heat and sound barrier is specifically designed for vehicles with a high transmission tunnel, offering unparalleled protection against unwanted noise and heat. By isolating your cabin from road roar, exhaust vibrations, and engine heat, this kit creates a significantly more comfortable and quieter interior environment, perfect for long hauls or daily commutes.

Precision Fit for Your Squarebody

  • Vehicle-Specific Design: Custom pre-cut to perfectly fit the floor of 1981-1987 GM C/K 10, 20, and 30 Standard Cab trucks with a high transmission tunnel.
  • Superior Material Blend: Constructed from a high-performance aluminum and foam composite, providing exceptional thermal resistance and acoustic dampening.
  • Enhanced Cabin Acoustics: Dramatically reduces interior noise levels, allowing for improved audio clarity and a more peaceful ride.
  • Thermal Regulation: Effectively blocks heat transfer from the drivetrain and exhaust, maintaining a cooler cabin temperature.

Seamless Installation, Lasting Performance

The Flatline Barriers high tunnel floor insulation kit is engineered for ease of installation, with each piece precisely cut to contour your truck's floor. This eliminates the need for tedious modifications, ensuring a clean, professional finish. Invest in this essential upgrade to transform your classic GM truck into a modern marvel of comfort and quiet. Discover premium automotive solutions and more at GGCRACING.COM.

Product Details

Product Description
Part Numbers
Sizing & Fit

About Flatline Barriers

Flatline Barriers engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Flatline Barriers lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

Advanced High Tunnel Floor Insulation for 1981-1987 GM C/K Standard Cab

Enhance the driving experience in your 1981-1987 GM C/K 10-30 Standard Cab truck with the Flatline Barriers Pre-Cut High Tunnel Floor Insulation Kit. This expertly crafted heat and sound barrier is specifically designed for vehicles with a high transmission tunnel, offering unparalleled protection against unwanted noise and heat. By isolating your cabin from road roar, exhaust vibrations, and engine heat, this kit creates a significantly more comfortable and quieter interior environment, perfect for long hauls or daily commutes.

Precision Fit for Your Squarebody

  • Vehicle-Specific Design: Custom pre-cut to perfectly fit the floor of 1981-1987 GM C/K 10, 20, and 30 Standard Cab trucks with a high transmission tunnel.
  • Superior Material Blend: Constructed from a high-performance aluminum and foam composite, providing exceptional thermal resistance and acoustic dampening.
  • Enhanced Cabin Acoustics: Dramatically reduces interior noise levels, allowing for improved audio clarity and a more peaceful ride.
  • Thermal Regulation: Effectively blocks heat transfer from the drivetrain and exhaust, maintaining a cooler cabin temperature.

Seamless Installation, Lasting Performance

The Flatline Barriers high tunnel floor insulation kit is engineered for ease of installation, with each piece precisely cut to contour your truck's floor. This eliminates the need for tedious modifications, ensuring a clean, professional finish. Invest in this essential upgrade to transform your classic GM truck into a modern marvel of comfort and quiet. Discover premium automotive solutions and more at GGCRACING.COM.

Product Details

Product Description

About Flatline Barriers

Flatline Barriers engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Flatline Barriers lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

Advanced High Tunnel Floor Insulation for 1981-1987 GM C/K Standard Cab

Enhance the driving experience in your 1981-1987 GM C/K 10-30 Standard Cab truck with the Flatline Barriers Pre-Cut High Tunnel Floor Insulation Kit. This expertly crafted heat and sound barrier is specifically designed for vehicles with a high transmission tunnel, offering unparalleled protection against unwanted noise and heat. By isolating your cabin from road roar, exhaust vibrations, and engine heat, this kit creates a significantly more comfortable and quieter interior environment, perfect for long hauls or daily commutes.

Precision Fit for Your Squarebody

  • Vehicle-Specific Design: Custom pre-cut to perfectly fit the floor of 1981-1987 GM C/K 10, 20, and 30 Standard Cab trucks with a high transmission tunnel.
  • Superior Material Blend: Constructed from a high-performance aluminum and foam composite, providing exceptional thermal resistance and acoustic dampening.
  • Enhanced Cabin Acoustics: Dramatically reduces interior noise levels, allowing for improved audio clarity and a more peaceful ride.
  • Thermal Regulation: Effectively blocks heat transfer from the drivetrain and exhaust, maintaining a cooler cabin temperature.

Seamless Installation, Lasting Performance

The Flatline Barriers high tunnel floor insulation kit is engineered for ease of installation, with each piece precisely cut to contour your truck's floor. This eliminates the need for tedious modifications, ensuring a clean, professional finish. Invest in this essential upgrade to transform your classic GM truck into a modern marvel of comfort and quiet. Discover premium automotive solutions and more at GGCRACING.COM.

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