ALL 5 TIRES ON THIS VEHICLE ARE BADLY CRACKED GOODYEAR REP SAID TIRES MADE 1988 HOW CAN THIS BE ALLOWED . TIRES ARE 11 YEARS OLD ON THIS TRUCK AND I AM THE ORIGANL OWNER. I COMPLAINED ABOUT THE FIRST TIRE AT 30 MILES WHEN A CHUNK WAS MISSING OUT OF IT THE DAY I TOOK DELIVERY OF THE TRUCK. THE WHOLE DOT CODE IS AS FOLLOWS MDOR RTOV 088. THAT IS FOR JUST ONE TIRE THEY ALL LOOK AS BAD AS CAN BE. I AM GETTING READY TO HAVE TO GO PURCHASE NEW TIRES, AND IF ANYONE ASKS THIS VEHICLE HAS NOT BEEN ABUSED OR EVEN OFF THE PAVEMENT. I USE IT TO PULL MY 5TH WHEEL TRAILER. PLEASE LET ME KNOW WHAT HAPPENS, I DONT WANT ANYONE HURT BECAUSE THERE VEHICLE MIGHT HAVE THE SAME AGE TIRES ON IT. (DOT NUMBER: MDOR TIRESIZE: LT23585R16)