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1955 -59 (2nd Series) Chevrolet / GMC Stepside Truck Cross Sill Brace Center

SKU: 110427-OER


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Vehicle Fitment:

  • 1955 Chevrolet Truck

1955 -59 (2nd Series) Chevrolet / GMC Stepside Truck; Cross Sill Brace; Center

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 the steel brace with the original bolt pattern for your truck.

Applications: 1955-59 2nd series GM Stepside truck:

  • 2 required for short bed models
  • 3 required for 89″ long bed models
  • 4 required for 97″ long bed models

‚Åï Some 2nd Series 1955-59 short bed stepside beds originally had a 3rd Cross Sill that was different from the others. The outer end of this sill is formed upward to give clearance under the sill and outward from the frame. Your truck suspension may or may not require this sill.

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:

Original Equipment Reproduction essentially clones OE parts such as 1955 -59 (2nd Series) Chevrolet / GMC Stepside Truck; Cross Sill Brace; Center, as well as Chevrolet, Ford, Dodge and Plymouth cars and trucks—parts designed to look, perform, and install exactly as the original parts they’re replacing.

Original Equipment Reproduction - OER - is the leading manufacturer and distributor of quality classic automotive restoration parts and accessories. OER products are meticulously manufactured to replicate the OEM appearance, quality and fit that meets or exceeds the original factory specifications.


  • 1955 Chevrolet Truck