Description
Bed Cross Sill – Front – 1947–Early 1951 Chevy GMC 3100 1/2-Ton & 3600 3/4-Ton Stepside Pickup | 9-Board Bed | OE-Style Replacement | AMD
Restore the structural integrity of your classic Advance Design pickup bed with this OE-style Front Bed Cross Sill for 1947–Early 1951 Chevrolet and GMC 3100 1/2-ton and 3600 3/4-ton Stepside pickups equipped with the original 9-board bed floor. Manufactured to original factory specifications, this heavy-duty cross sill provides the strength and support necessary to properly reinforce the bed floor while maintaining authentic factory fit and appearance.
Positioned directly behind the front bed panel, this is the first (front-most) bed cross sill in the pickup bed. Constructed to match the original dimensions, contours, and mounting locations, it serves as a direct replacement for rusted, bent, or damaged originals and is ideal for restoration or bed rebuild projects.
As with all AMD restoration components, this bed cross sill is engineered for OE-style fitment and durability, making it the perfect choice for restoring your Advance Design truck to factory specifications.
Key Features
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OE-style front bed cross sill
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Fits 1947–Early 1951 Chevrolet and GMC Stepside pickups
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Correct for 9-board bed floor applications
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Front-most bed cross sill located directly behind the front bed panel
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Manufactured to original factory specifications
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Heavy-duty steel construction
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Correct contours and mounting locations
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Restores bed floor strength and structural support
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Direct replacement for rusted or damaged originals
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Premium AMD restoration component
Vehicle Compatibility
Chevrolet
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1947–Early 1951 3100 1/2-Ton Stepside Pickup
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1947–Early 1951 3600 3/4-Ton Stepside Pickup
GMC
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1947–Early 1951 100 1/2-Ton Stepside Pickup
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1947–Early 1951 150 3/4-Ton Stepside Pickup
Technical Information
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Product Type: Front Bed Cross Sill
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Position: First Cross Sill Behind Front Bed Panel
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Bed Floor Configuration: 9-Board
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Material: Heavy-Gauge Stamped Steel
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Installation: Direct Replacement
Notes or Fitment Clarifications
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Fits 9-board bed floor applications only
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One front cross sill required per vehicle
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Installs directly behind the front bed panel
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Manufactured to OE specifications for factory fit and appearance
1951 Model Year Transition:
The 1951 Chevrolet and GMC 3100 pickup model year was a transition period for Advance Design truck beds. Early-production trucks were equipped with a 9-board bed floor, while later-production trucks received the revised 8-board bed floor. Because an official GM production break has not been widely documented—and many trucks have had bed components replaced over the years—please verify whether your truck is equipped with an 8-board or 9-board bed before ordering.
How to Identify Your Bed:
An 8-board bed uses eight wooden bed planks, while a 9-board bed uses nine wooden bed planks. Count the bed boards on your truck before ordering to ensure you select the correct replacement components.
This fits:
Vehicle Application(s)
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