PE-00-020; ORIGINAL EQUIPMENT ON A 1999 FORD RANGER, TIRE SIZE P22570R15 DOT NUMBER NOT AVAILABLE. TIRES HAVE 29 THOUSAND MILES ON THEM. THREE OUT OF 4 TIRES HAVE DEVELOPED MAJOR CRACKS AROUND THE SIDEWALL AREA. BOTH FRONTAL TIRES AND RIGHT REAR TIRE. PORTIONS OF THE TREAD WASMISSING FROM THE BOTH FRONTAL TIRES. ALSO, THE STEEL BELTS WERE COMING THROUGH THE TREAD WHICH WAS CAUSING THE VEHICLE TO FISHTAIL. CONSUMER HAS CONTACTED THE DEALER. PLEASE PROVIDE ANY FURTHER DETAILS.*AK