Vehicle cargo bed structure

A vehicle cargo bed structure comprising

• a vehicle cargo area including a bed floor, a first side cargo wall and a second side cargo wall, with a tailgate opening being defined at rearward ends of the first and second cargo walls;
• an accessory attachment track attached to the bed floor, the accessory attachment track extending in a vehicle longitudinal direction, the accessory track having a pair of side walls defining a channel therebetween and a pair of lip portions that extend from upper ends of respective ones of the side walls defining an elongated opening therebetween open to the channel;
• a tailgate having a first end pivotally attached to a rear of the vehicle cargo area for pivoting movement between a closed position covering the tailgate opening between the first side cargo wall and the second side cargo wall and an open position exposing the tailgate opening, with a gap being defined between a rear end of the bed floor and the first end of the tailgate;
• and
• a tailgate gap cover having an attachment structure that includes a first part and a second part, the first part being inserted into the channel between the side walls of the accessory attachment track and the second part being positioned above the pair of lip portions of the accessory attachment track with a fastening member extending between the first part and the second part clamping the attachment structure to the lip portions of accessory attachment track such that the tailgate gap cover is removable and re-attachable to the accessory attachment track, the tailgate gap cover further being pivotal between a horizontal orientation with the tailgate in the open position and an upright orientation with the tailgate in the closed position, with the tailgate gap cover covering the gap with the tailgate in the open position.