1. Select the vehicle you want to change from the list to get to the Manage Vehicle screen
2. Click the "Manage Configurations" link on the WM Configurations Panel to change the vehicles configuration
3. Remove the configuration you want to change by clicking on the “remove” link next to that configuration
4. Then add a new configuration by entering the Weight and/or Axles  
5. Click "Update Details" to save changes
6. Click the “Cancel” button to exit without saving the changes made