NHTSA Complaint #735910 — 1986 SAAB 900

I AM AWARE OF THE TIRE RECALL AND QUESTIONS ABOUT OTHER MANUFACTURERS. I PURCHASED A SAAB IN 1986 EQUIPPED WITH PIRELLI TIRES. ALL FOUR OF THE TIRE TREADS SEPARATED WITHIN 15,000, INCLUDING ONE INCIDENT AT 65 MPH. I SENT ONE FO THE TIRES BACK TO PIRELLI FOR EXAMINATION. THEY CLAIMED THERE WAS NO MNAUFACTURING FLAW THAT CAUSED THE SEPARATION. THERE IS ABSOLUTELY NO WAY 4 NEW TIRES WITH LESS THAN 15,000 MILES COULD ALL SEPARATE WITHOUT A DEFECT. I REALIZE THIS IS AN OLD COMPLAINT BUT I THINK IT IS IMPORTANT TO KNOW THAT OTHER TIRE COMPANIES ARE ALSO PRODUCING SHODDY TIRES.( DOT NUMBER: )