What are the odds someone here knows the line fitting size for the metal line on the rear axle of a 1966 Cutlass that goes from the wheel cylinder to the little T hose on the rear end? Specifically, one of the lines from the T hose that goes along the axle tube to the wheel cylinder blew out and I want to plug it at the rubber T just so I have enough brakes to move the car into the garage and need to know what size and thread pitch plug to buy. Any info would be much appreciated.

 

3/16

 

Much appreciated, I'll pick one up tomorrow so long as the store has it.