I was pulling parts off a 66 c code convertible and noticed a tube brace that's maybe just over a half inch round that ran from the firewall end of the clutch pedal support to under the metal dash towards the glove box. I have a 66 A code standard trans car and cant remember seeing a similar brace. Were the braces a convertible thing? Something on standard transmission cars and not automatics? If anyone could refresh my memory on when its used I'd appreciate it.