[dsraven]

c'mon 59, its from a newer chevy truck. duh.
just kidding.
what I would doif I were you, if you like the look and larger pedal pad, is look at a newer truck that parts are easily available, like in stock at canadian tire or auto value's "help" section etc, then go to pick n pull and find that truck, remove the pedal pad and take a pattern of the steel part of the actual pedal. then you can either keep the used pedal pad or order one for a vehicle of that year/series. when it arrives you can fab a steel pedal part for it and weld it onto your existing pedal. or get the complete pedal from the donor truck at the wrecker but you need the whole pedal as a hacksaw isn't gonna cut it well and they don't usually let you in the yard with any soet of power cutting tool. trust me, those pedal arms are hardened or treated steel. when I was working the rescue truck we avoided cutting the pedals if we could because they took the edge off our jaws of life tools, or they took a piece out of the cutting edge.