GMC/Chevy | Cross Sills 1947 – Early 1951



This heavy gage steel part made by MAR-K is mounted across the frame under the wood for support. Bolt holes in the cross sill determine the placement of the bed strips and wood. The bed strips, angle strips, and front bed panel are bolted to the front cross sill and the wood is bolted to the frame through the cross sill by the bed-to-frame bolts. Cross sill is sold with holes and includes brackets. There is 1 front cross sill and 2 center cross sills. These are available in the original steel or in Stainless Steel. Bed mounting blocks sold separately. Made in the USA.