73-87 Chev/GMC P/U, Cross Sill

This cross sill fits:
1973-1987 Chevrolet Fleetside Pickup with steel bed floor1973-1987 GMC Fleetside Pickup with steel bed floor
Measurement 72 x 4 x 3
Weight 11lb   NOTE: LONG BED MODELS HAVE 5 OF THESE AND SHORT BED MODELS HAVE 3