99-06 SILV/SIERRA +07 CLASSIC SILV/SIERRA FLEETSIDE CROSS SILL KIT (W/O REAR CROSS SILL) FOR 5.5' AND 6' BED 4PC

This 4pc cross sill kit fits:
1999-2006 Chevrolet Silverado fleetside with 5.5' or 6' bed 1999-2006 GMC Sierra fleetside with 5.5' or 6' bed
Measurement 64 3/4 x 9 x 4 1/2
Weight 36.6 lbs This is all of the cross sills, except the rear cross sill under the tailgate, for a 5.5' or 6' bed