I only got a quick look under the hood, so I could have been mis-interpreting some of the options. The brake pedal did still go through the floor, and it was still the stock front axle and stock brakes (or atleast it still looked stock, I don't know exactly what '58 GMC equipment looked like). There was a unit mounted onto the driver's side frame rail at about the same height as the exhaust manifold that looked like a reversed master cylinder. It was not attached to the firewall though, just the frame. Had a larger round cylinder on the front with steel lines running to and from, and a small master-cylinder that hung off the back pointing towards the firewall. As I said, it was a quick look over under the hood. It may have just been a standard remote reservoir? Anyone got a picture of a stock GMC brake master cylinder?
