A sliding door moves between a closed position and an open position over a vehicle opening. A track is mounted along the vehicle and extends to a remote end. The length of the track is less than the distance traveled by the sliding door. A door bracket mounted to the sliding door has a slot extending parallel to the track with first and second ends. A roller bracket has rollers received by the track and is movable between a first position proximate the opening and a second position at the remote end of the track. The roller bracket includes a pin slidably received in the slot to shift between the first and second ends of the slot. The pin is pivotally retained at the first end of the slot when the sliding door is closed. The pin is retained at the second end when the sliding door is open.