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1963-72 Chevy, GMC Fleetside Pickup Truck, Cross Sill Brace, For Bed with Wood Floor

1963-72 Chevy, GMC Fleetside Pickup Truck, Cross Sill Brace, For Bed with Wood Floor
1963-72 Chevy, GMC Fleetside Pickup Truck, Cross Sill Brace, For Bed with Wood Floor1963-72 Chevy, GMC Fleetside Pickup Truck, Cross Sill Brace, For Bed with Wood Floor1963-72 Chevy, GMC Fleetside Pickup Truck, Cross Sill Brace, For Bed with Wood Floor
$105.99 ea
NEWARRIVING SOONEstimated Ship Date 05/07/2026 (If Ordered Today)122 Available from our supplier as of 04/20/2026
Model: 3962588
Select a Vehicle or refer to the Vehicle Fitment Tab below to verify that this part fits your vehicle.
OVERSIZE 2
STORE PICKUP
[More Info]

This cross sill is mounted across the frame under the wood for support. The bed strips are bolted to the cross sills giving the bed wood strength and rigidity and providing the surface to mount the bed to the truck frame. Each sill has pre-punched holes in 14 gauge steel with the original bolt pattern for your year and model.

Applications: 1963-72 Chevy, GMC Fleetside Pickup trucks:

  • 3 required for short bed models
  • 5 required for long bed models

Confused about wood bed parts terminology and what parts you might need to add or replace a wood bed? Click the link below to find the answers:

  • Truck Bed Wood - A Beginner's Guide.

Note: Shipped double oversize.

Vehicle Fitment:

The Vehicle Fitment Guide is to be used as a general reference. The data has been provided by our suppliers and manufacturers and may contain errors or incorrect data. Always refer to a professional to verify correct fitment for your vehicle.
Make Model Years
Chevrolet C10 Pickup 1963 - 1972
Chevrolet C20 Pickup 1963 - 1972
Chevrolet C30 Pickup 1963 - 1972
Chevrolet K10 Pickup 1963 - 1972
Chevrolet K20 Pickup 1963 - 1972
Chevrolet K30 Pickup 1968 - 1972
GMC C15/C1500 Pickup 1967 - 1972

Specifications:

Height 81 in
Length 6 in
Weight 16 lbs
Width 6 in

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