BRIDGESTONE, P205/70R15, DOT UNKNOWN, REPLACEMENT TIRE, MILAGE UNKNOWN ON A 1988, SUZUKI, SAMURAI. WHILE DRIVING 55 MPH HEARD A NOISE. THEN, VEHICLE STARTED TO FISHTAIL, SPUN AROUND 180 DEGREES AND HIT A TREE. DAMAGE TO VEHICLE UNKNOWN. NO INJURIES. REAR DRIVER'S SIDE TIRE HAD TREAD SEPARATION, A 2 1/2 FEET LONG PIECE OF TREAD CAME OFF, TIRE WAS NOT FLAT. *AK TREAD SEPARATION CAUSED DAMAGE TO THE ENTIRE DRIVERS SIDE, CONVERTIBLE TOP AND REAR TIRE, DRIVER SUSTAINED BACK/NECK PAIN. NLM