4/11/16 THE DRIVERS SIDE TIRE SHEERED OFF OF THE TRAILER CAUSING A NEAR FATAL WRECK WITH MATERIAL DAMAGE WHILE IN MOTION ON THE I5 FREEWAY IN SANTA ANA PLACING OUR FAMILY IN HARMS WAY ON A BLIND EXIT. THIS OCCURED IMMEDIATELY FOLLOWING AN AXEL REPLACEMENT ON THE COACH DUE TO A PETITION. THE RECALL WAS NOT COMPLETED WITH QUALITY AND WAS DONE WITH NEGLIGENCE. THE CHP (OFFICER HAMMING FROM SANTA ANA) AND 511 CONFIRMED THAT THE LUG NUTS WERE ABLE TO BE REMOVED/TIGHTENED BY HAND AND THAT THEY WERE NOT TIGHTENED PROPERLY FROM MY DEALER RV SUPERCENTER IN TEMECULA CA (AFTER DRIVING LESS THAN 60 MILES) ON BOTH TIRES. IT HAS COME TO OUR ATTENTION THAT THE AXEL RECALL WAS NOT INSTALLED PROPERLY AND USED INCORRECT PARTS INCLUDING THE SHACKLE MAKING MY COACH SIT TOO HIGH AND MADE UNSAFE TO TOW. ADDITIONALLY, WE WERE NOT PROVIDED A NEW MANUAL FOR THE REPLACEMENT AXLE NOR A TOOL TO TIGHTEN THE LUG NUTS. I AM EXTREMELY CONCERNED ABOUT BOTH THIS DEALERSHIP INCORRECTLY INSTALLING THE RECALL AXLE FOR OTHER CUSTOMERS AS WELL AS SHASTA NOT PROVIDING THE CORRECT PARTS TO REPLACE THE AXLE. ADDITIONALLY, AFTER THE ACCIDENT WE NOTICED THAT THE COACH IS NOW SEPARATING FROM THE CHASSIS SHOWING LIGHT INSIDE THE COACH NEAR THE DINETTE. WE DO NOT KNOW IF THIS IS DUE TO THE ACCIDENT OR DUE TO THE POOR QUALITY OF THE STRUCTURE OF THE SHASTA. WE ARE AWARE OF AN OPEN INVESTIGATION DP 15-008 REGARDING 2015 AND 2016 FOREST RIVER SHASTA AIRFLYTE INCLUDING STRUCTURAL ISSUES AS WE ARE NOW HAVING. I AM AW