Terrawagen Track Wedge – Sliding Door Spacer for Mercedes Sprinter (906 & 907)If youve upgraded to larger tires on your Mercedes Sprinter, you may notice the sliding door contacting the tire or wheel well when opening. The Terrawagen Track Wedge solves this issue by spacing the sliding door outward, creating additional clearance so the door can operate normally without rubbing. The Track Wedge installs between the factory slider door track and the van body, increasing door clearance over the wheel well by approximately 1 inches