855.444.6872 Contact Us Mon-Sat 10a-6p
DRIVEN BY CARE
Home

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
$107.99 ea
NEWARRIVING SOONEstimated Ship Date 06/23/2026 (If Ordered Today)105 Available from our supplier as of 06/06/2026
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 1000 Series 1963 - 1965
GMC 1000 1966
GMC 1500 Series 1963 - 1965
GMC 1500 1966
GMC 2500 Series 1963 - 1965
GMC 2500 1966
GMC C15/C1500 Pickup 1967 - 1972
GMC C25/C2500 Pickup 1967 - 1972
GMC C35/C3500 Pickup 1967 - 1972
GMC K15/K1500 Pickup 1967 - 1972
GMC K25/K2500 Pickup 1967 - 1972
GMC K35/K3500 Pickup 1968 - 1972

Specifications:

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

Reviews:

Write a Review
* Your Name:
* Email (This will not be displayed)
* Rating:
Comments:

Ask a question about

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

Related Products

1954-55 (1st Series) Chevrolet / GMC Stepside Truck, Cross Sill Brace, Center
1954-55 (1st Series) Chevrolet / GMC Stepside Truck, Cross Sill Brace, Center
Model: 3963041
Condition: NEW
$79.99 ea
1967-72 Chevrolet, GMC Pickup, Bed Cross Sill, Fleetside, Steel Bed, Rear of Wheelhouse
1967-72 Chevrolet, GMC Pickup, Bed Cross Sill, Fleetside, Steel Bed, Rear of Wheelhouse
Model: 3959350
Condition: NEW
$83.99 ea
1960-62 Chevrolet / GMC Truck, Fleetside, Cross Sill Brace
1960-62 Chevrolet / GMC Truck, Fleetside, Cross Sill Brace
Model: 3963288
Condition: NEW
$95.99 ea
1955-59 Chevrolet, GMC Stepside Pickup Truck, Rear Cross Sill Brace
1955-59 Chevrolet, GMC Stepside Pickup Truck, Rear Cross Sill Brace
Model: 3964591
Condition: NEW
$255.99 ea
1973-87 Chevrolet, GMC Pickup Truck, Stepside, Cross Sill Brace
1973-87 Chevrolet, GMC Pickup Truck, Stepside, Cross Sill Brace
Model: 3961309
Condition: NEW
$107.99 ea

Frequently bought together

1960-72 Chevrolet, GMC, Stepside / Longhorn Fleetside, Reinforcement Strip, For Bed With Wood Floor, 49.5"
1960-72 Chevrolet, GMC, Stepside / Longhorn Fleetside, Reinforcement Strip, For Bed With Wood Floor, 49.5"
Model: 3963770
Condition: NEW
$58.99 ea
1967-72 Chevy Pickup, Blazer, Suburban, Inner Wheel House Panel, RH or LH, Each, EDP Coated
1967-72 Chevy Pickup, Blazer, Suburban, Inner Wheel House Panel, RH or LH, Each, EDP Coated
Model: 3959346
Condition: NEW
$152.99 ea
1963-72 Chevrolet, GMC, Rear Cross Sill, Fleetside Pickup, for Wood Floor Only
1963-72 Chevrolet, GMC, Rear Cross Sill, Fleetside Pickup, for Wood Floor Only
Model: 3960804
Condition: NEW
$333.99 ea
1967-72 Chevy, GMC Pickup Truck, Bed Floor Mounting Hardware Set, for Wood Floor, Short Bed or Long Bed, 40 Piece Set
1967-72 Chevy, GMC Pickup Truck, Bed Floor Mounting Hardware Set, for Wood Floor, Short Bed or Long Bed, 40 Piece Set
Model: 4963256
Condition: NEW
$42.99 st
1960-72 Chevrolet, GMC Pickup Truck, Fleetside, Reinforcement Strip, For Bed With Wood Floor, 72"
1960-72 Chevrolet, GMC Pickup Truck, Fleetside, Reinforcement Strip, For Bed With Wood Floor, 72"
Model: 3964422
Condition: NEW
$83.99 ea