Seller notes

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 models3 required for 89 long bed models4 required for 97 long bed models⁕ Some 2nd Series 1955-59 shor...

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