Extended travel rear suspension from Carli or Thuren allows the driveshaft to contact the PowerWagon Skid Plate in its factory form. These Skid Plate Spacer Blocks slide between the plate and the frame rail to ensure proper spacing while supporting the new skid plate position. This ensures the first obstacle the skid plate encounters doesn't push the skid back into the driveshaft. Each block is made from billet aluminum which is tough enough to handle just about anything you throw its way.