Flatline Barriers Floor Insulation Kit (Low Tunnel) — Fits 1973-1980 GM C/K 10-30 Truck

SKU: HMTJ_TABT4009
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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

Floor Insulation for 1973-1980 GM C/K Trucks (Low Tunnel)

Is your classic GM truck floor getting too hot or letting in too much road noise? The Flatline Barriers Floor Insulation Kit for 1973-1980 GM C/K 10-30 series trucks with a low tunnel is the professional solution you need. This kit provides comprehensive coverage for your floor pans, significantly reducing the heat radiating from the transmission and exhaust system while dampening vibrations from the road.

Key Benefits for Your Build

  • Low Tunnel Design: Specifically manufactured to fit the low transmission tunnel configuration found in many 73-80 GM trucks.
  • Thermal Barrier: The reflective aluminum surface keeps the cabin cool, even during hot summer months.
  • Acoustic Dampening: High-quality foam layers absorb road noise and exhaust resonance for a luxury-car feel.
  • Pre-Cut Convenience: Save hours of measuring and cutting with our precision-fit panels designed for a quick install.

Upgrading your floor insulation is a critical step in any interior restoration project. By creating a solid barrier between your feet and the hot transmission tunnel, you significantly improve driver comfort. This kit is engineered to withstand the rigors of daily driving while maintaining its shape and effectiveness over time. Whether you are restoring a work truck or a custom cruiser, this insulation kit is a must-have for a quiet, cool cabin. Get the best components for your restoration project at GGCRACING.

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

Floor Insulation for 1973-1980 GM C/K Trucks (Low Tunnel)

Is your classic GM truck floor getting too hot or letting in too much road noise? The Flatline Barriers Floor Insulation Kit for 1973-1980 GM C/K 10-30 series trucks with a low tunnel is the professional solution you need. This kit provides comprehensive coverage for your floor pans, significantly reducing the heat radiating from the transmission and exhaust system while dampening vibrations from the road.

Key Benefits for Your Build

  • Low Tunnel Design: Specifically manufactured to fit the low transmission tunnel configuration found in many 73-80 GM trucks.
  • Thermal Barrier: The reflective aluminum surface keeps the cabin cool, even during hot summer months.
  • Acoustic Dampening: High-quality foam layers absorb road noise and exhaust resonance for a luxury-car feel.
  • Pre-Cut Convenience: Save hours of measuring and cutting with our precision-fit panels designed for a quick install.

Upgrading your floor insulation is a critical step in any interior restoration project. By creating a solid barrier between your feet and the hot transmission tunnel, you significantly improve driver comfort. This kit is engineered to withstand the rigors of daily driving while maintaining its shape and effectiveness over time. Whether you are restoring a work truck or a custom cruiser, this insulation kit is a must-have for a quiet, cool cabin. Get the best components for your restoration project at GGCRACING.

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

Floor Insulation for 1973-1980 GM C/K Trucks (Low Tunnel)

Is your classic GM truck floor getting too hot or letting in too much road noise? The Flatline Barriers Floor Insulation Kit for 1973-1980 GM C/K 10-30 series trucks with a low tunnel is the professional solution you need. This kit provides comprehensive coverage for your floor pans, significantly reducing the heat radiating from the transmission and exhaust system while dampening vibrations from the road.

Key Benefits for Your Build

  • Low Tunnel Design: Specifically manufactured to fit the low transmission tunnel configuration found in many 73-80 GM trucks.
  • Thermal Barrier: The reflective aluminum surface keeps the cabin cool, even during hot summer months.
  • Acoustic Dampening: High-quality foam layers absorb road noise and exhaust resonance for a luxury-car feel.
  • Pre-Cut Convenience: Save hours of measuring and cutting with our precision-fit panels designed for a quick install.

Upgrading your floor insulation is a critical step in any interior restoration project. By creating a solid barrier between your feet and the hot transmission tunnel, you significantly improve driver comfort. This kit is engineered to withstand the rigors of daily driving while maintaining its shape and effectiveness over time. Whether you are restoring a work truck or a custom cruiser, this insulation kit is a must-have for a quiet, cool cabin. Get the best components for your restoration project at GGCRACING.

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