PE 00 046/TREAD SEPARATION: LEFT REAR TIRE HAD A TREAD SEPARATION WHILE TRAVELING AT 68 MPH. VEHICLE WAS FORCED OFF ROAD AND DOWN AN EMBANKMENT INTO A WOODEN AREA. DRIVER/ PASSENGER AND THREE CHILDREN RECEIVED MINOR INJURIES IN A 2001, CHEVROLET, SILVERADO; AFTERMARKET EQUIPMENT, INSTALLED AT 8,000 MILE, TIRE SIZE P265/75R16, DOT# UNAVAILABLE. DEALER/ MANUFACTURER NOTIFIED. FEEL FREE TO PROVIDE ANY FURTHER DETAILS ON THIS MATTER. *AK