2018 GMC Sierra 3500 HD Truck Bed Rack Base Rail Extension Parts

Showing 1 - 10 of 16 products
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Thule
  • Silver
  • Cantilever Extension Full Size; Silver;
  • Cantilever Extension Full Size
  • Features:
    • Cantilever Full Size

Additional Fitment Information:
Vehicle Bed Length Body
2018 - GMC Sierra 3500 HD 78.8 Crew Cab Pickup

Thule
  • Silver Dually Bed
  • Cantilever Extension Full Size; Silver;
  • Cantilever Extension Full Size
  • Features:
    • Cantilever Full Size

Additional Fitment Information:
Vehicle Bed Length Body
2018 - GMC Sierra 3500 HD 78.8 Crew Cab Pickup

Thule
  • Silver
  • Cantilever Extension Full Size; Silver;
  • Cantilever Extension Full Size
  • Features:
    • Cantilever Full Size

Additional Fitment Information:
Vehicle Bed Length Body
2018 - GMC Sierra 3500 HD 78.8 Crew Cab Pickup

Thule
  • Silver Dually Bed
  • Cantilever Extension Full Size; Silver;
  • Cantilever Extension Full Size
  • Features:
    • Cantilever Full Size

Additional Fitment Information:
Vehicle Bed Length Body
2018 - GMC Sierra 3500 HD 78.8 Crew Cab Pickup

TracRac
  • Cantilever Extension
  • 69.5 in. Crossbar; Silver Dually Bed Will Need To Cut Drop In Bed Liner To Get To Underside To Install Rack Syst
  • Cantilever Extension; 69.5 in. Crossbar; Silver;
  • TracRac(TM) Trac Pro2 Truck Rack
  • Features:
    • Extends 32 in. Over The Cab w/3rd Crossbar
    • Wind Deflecting Technology To Ensure Minimal Wind Noise
    • 100 Percent Aluminum Construction
  • Do you have a TracRac on a short bed truck and haul anything over 8ft? or Do you have a TracRac on a long bed, but haul cargo over 10ft? The TracRac Cantilever Extension is the accessory for you. The Cantilever mounts to the crossbars and provides 32" additional inches of protection for your cab. The genius of this system is that it still allows for all of the flexibility of the Sliding TracRac System while protecting your cab from potentially unstable loads.

Additional Fitment Information:
Vehicle Bed Length Body
2018 - GMC Sierra 3500 HD 78.8 Crew Cab Pickup

TracRac
  • Cantilever Extension
  • 35 in. Crossbar; Silver Dually Bed Will Need To Cut Drop In Bed Liner To Get To Underside To Install Rack Syst
  • Cantilever Extension; 35 in. Crossbar; Silver;
  • TracRac(TM) Trac Pro2 Truck Rack
  • Features:
    • Extends 32 in. Over The Cab w/3rd Crossbar
    • Wind Deflecting Technology To Ensure Minimal Wind Noise
    • 100 Percent Aluminum Construction
  • Do you have a TracRac on a short bed truck and haul anything over 8ft? or Do you have a TracRac on a long bed, but haul cargo over 10ft? The TracRac Cantilever Extension is the accessory for you. The Cantilever mounts to the crossbars and provides 32" additional inches of protection for your cab. The genius of this system is that it still allows for all of the flexibility of the Sliding TracRac System while protecting your cab from potentially unstable loads.

Additional Fitment Information:
Vehicle Bed Length Body
2018 - GMC Sierra 3500 HD 78.8 Crew Cab Pickup

TracRac
  • Cantilever Extension
  • 35 in. Crossbar; Silver Dually Bed
  • Cantilever Extension; 35 in. Crossbar; Silver;
  • TracRac(TM) Trac Pro2 Truck Rack
  • Features:
    • Extends 32 in. Over The Cab w/3rd Crossbar
    • Wind Deflecting Technology To Ensure Minimal Wind Noise
    • 100 Percent Aluminum Construction
  • Do you have a TracRac on a short bed truck and haul anything over 8ft? or Do you have a TracRac on a long bed, but haul cargo over 10ft? The TracRac Cantilever Extension is the accessory for you. The Cantilever mounts to the crossbars and provides 32" additional inches of protection for your cab. The genius of this system is that it still allows for all of the flexibility of the Sliding TracRac System while protecting your cab from potentially unstable loads.

Additional Fitment Information:
Vehicle Bed Length Body
2018 - GMC Sierra 3500 HD 78.8 Crew Cab Pickup

TracRac
  • Cantilever Extension
  • 69.5 in. Crossbar; Silver Dually Bed Will Need To Cut Drop In Bed Liner To Get To Underside To Install Rack Syst
  • Cantilever Extension; 69.5 in. Crossbar; Silver;
  • TracRac(TM) Trac Pro2 Truck Rack
  • Features:
    • Extends 32 in. Over The Cab w/3rd Crossbar
    • Wind Deflecting Technology To Ensure Minimal Wind Noise
    • 100 Percent Aluminum Construction
  • Do you have a TracRac on a short bed truck and haul anything over 8ft? or Do you have a TracRac on a long bed, but haul cargo over 10ft? The TracRac Cantilever Extension is the accessory for you. The Cantilever mounts to the crossbars and provides 32" additional inches of protection for your cab. The genius of this system is that it still allows for all of the flexibility of the Sliding TracRac System while protecting your cab from potentially unstable loads.

Additional Fitment Information:
Vehicle Bed Length Body
2018 - GMC Sierra 3500 HD 78.8 Crew Cab Pickup

TracRac
  • Cantilever Extension
  • 35 in. Crossbar; Silver Dually Bed
  • Cantilever Extension; 35 in. Crossbar; Silver;
  • TracRac(TM) Trac Pro2 Truck Rack
  • Features:
    • Extends 32 in. Over The Cab w/3rd Crossbar
    • Wind Deflecting Technology To Ensure Minimal Wind Noise
    • 100 Percent Aluminum Construction
  • Do you have a TracRac on a short bed truck and haul anything over 8ft? or Do you have a TracRac on a long bed, but haul cargo over 10ft? The TracRac Cantilever Extension is the accessory for you. The Cantilever mounts to the crossbars and provides 32" additional inches of protection for your cab. The genius of this system is that it still allows for all of the flexibility of the Sliding TracRac System while protecting your cab from potentially unstable loads.

Additional Fitment Information:
Vehicle Bed Length Body
2018 - GMC Sierra 3500 HD 78.8 Crew Cab Pickup

TracRac
  • Cantilever Extension
  • 69.5 in. Crossbar; Silver Dually Bed
  • Cantilever Extension; 69.5 in. Crossbar; Silver;
  • TracRac(TM) Trac Pro2 Truck Rack
  • Features:
    • Extends 32 in. Over The Cab w/3rd Crossbar
    • Wind Deflecting Technology To Ensure Minimal Wind Noise
    • 100 Percent Aluminum Construction
  • Do you have a TracRac on a short bed truck and haul anything over 8ft? or Do you have a TracRac on a long bed, but haul cargo over 10ft? The TracRac Cantilever Extension is the accessory for you. The Cantilever mounts to the crossbars and provides 32" additional inches of protection for your cab. The genius of this system is that it still allows for all of the flexibility of the Sliding TracRac System while protecting your cab from potentially unstable loads.

Additional Fitment Information:
Vehicle Bed Length Body
2018 - GMC Sierra 3500 HD 78.8 Crew Cab Pickup
Showing 1 - 10 of 16 products

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