TL* THE CONTACT OWNS A 2007 VENTURE 3700VBT TRAILER. THE CONTACT STATED WHILE DRIVING AT SPEEDS OF 35 MPH, THE REAR LEAF SPRINGS BROKE IN FOUR PLACES WITHOUT WARNING, WHICH CAUSED THE TRAILER TO JACK KNIFE. THE DEALER STATED THAT ALL THEY COULD DO WAS REPLACE BOTH REAR LEAF SPRINGS. THE FAILURE MILEAGE WAS UNAVAILABLE. UPDATED 7/20/10 *CN THE TRAILER JACK KNIFED AND THEREFORE, THE CONSUMER HAD TO PURCHASE TWO NEW SPRINGS. UPDATED 07/23/10*JB