It’s definitely a thing. I own more than a few 2004-2019 GM Silverado’s and express vans, 1500,2500,3500,4500 & 6500. Replaced all the rotted brake lines on close half of them. I was sitting on the exit scales at the quarry in my 6500 and the pedal went to the floor. Lucky as fugg. If it had blown a minute later I’d have been heading downhill toward a stop sign at a busy interection.
Mechanic told me it’s a given.
I'll replace these, and should be good. I'll probably wince from now on when I pass another one.
