1958 - 1959 GM Long Bed Fleetside Bolt Kit 1973 The rear cross sill is

The rear cross sill is located below the tailgate

The rear cross sill comes complete with all bolt holes punched for bed strips and for attaching to stake pockets

offering superior resistance to environmental elements compared to the traditional 430 grade

and white ash

Bolt holes in the cross sill determine the placement of the bed strips and wood

1958 - 1959 GM Long Bed Fleetside Bolt Kit 1973 The rear cross sill isHardware kit includes all the bolts, nuts, washers, and lock washers to install the bed wood, bed strips, and angle strips. This includes the bed to frame bolts. Zinc plated steel bolts appear shiny but need to be painted to prevent rusting. Polished stainless kits are shiny, giving them a chrome appearance.