Hoping that you have the original hardware used, there are holes existing holes that are in your body under carriage. You can also visit your local garage, and have them re-install during your next oil change.
〉 Answered on Aug 17th, 2012 by Amanda J. Pierce, MBA "AJ", Certified Mechanic, Project Coordinator; Primavera Scheduler at VIGOR Alaska Industrial Shipyard & BizzM3ch Solutions
They should just screw back on to the wheel well.
〉 Answered on Aug 17th, 2012 by Lori Johnson, Owner and Instructor at Ladies Start Your Engines