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1955-59 Chevrolet, GMC Stepside Pickup Truck, Rear Cross Sill Brace

1955-59 Chevrolet, GMC Stepside Pickup Truck, Rear Cross Sill Brace
$250.99 ea
NEWARRIVING SOONEstimated Ship Date 05/07/2026 (If Ordered Today)39 Available from our supplier as of 04/20/2026
Model: 3964591
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]

Reproduction of the original rear cross sill for use with 1955-59 Chevrolet and GMC 1/2 ton Stepside Pickup Truck models.The rear cross sill is located below the tailgate and ties the back of the bed together. Bolted between the bed sides, it provides the rear mounting holes for the bed wood and strips. Starting at the front bed panel and moving towards the tailgate, this is the last cross sill, closest to the tailgate. Measures 55-1/8"ol. x 5-1/2" tall. NOTE: For use with 1955 2nd design (late production) models.

Chevrolet Truck Applications
  • 1955 - 1959 Chevrolet Truck
GMC Truck Applications
  • 1955 - 1959 GMC Truck

Note: Shipped 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 3100 1959
Chevrolet 3B 1959
Chevrolet 3C 1959
Chevrolet 3E 1959
Chevrolet 3G 1959
Chevrolet Truck 1955 - 1958
Dodge Truck 1955 - 1959
GMC Truck 1955 - 1959

Specifications:

Height 71 in
Length 7 in
Weight 21 lbs
Width 16 in

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1955-59 Chevrolet, GMC Stepside Pickup Truck, Rear Cross Sill Brace:

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