First and foremost- If this is a repeat of another thread I apologize to the LS community. I own an 01 Silverado. Yesterday I was towing my trailer and equipment. A Lady suddenly ran a red light and I almost blasted her. I hit the brakes hard. My trailer brakes locked and the truck provided little or no braking. I was scared $hitless to say the least. As no brake power returned, I inspected the lines and found a ruptured rusted out line. Various other lines leaving the Master cylinder look bad too. Brake fluid was pouring out of the ruptered line. Turns out thousands and thousands of other GM owners and operators have experienced similar problems, yet GM and NHTSA has done Jack Crap about it- except remain silent. NHTSA has commenced an engineering analysis for what that is worth. Had I not had electric brakes on the trailer I and the other driver would have been in for a world of hurt if not worse. I urge each one of you to carefull inspect your brake and fuel lines. You get no warning on this folks and its disgusting how GM is ignoring this problem instead of tackling it head on. Ive been a big chevy/ gm fan over the years...but this has rapidly corroded my faith in Gm and Chevrolet.