Rattling clutch pedal in 79 K20

[Got Smoke?]

I'm wondering if anyone sells the parts to rebuild my mechanical clutch pedal in my 79 K20? Mine has a bad lean to it that almost makes it hit the dimmer switch in the floor when depressed. It rattles horribly if I don't keep some kind of constant pressure on it in front or behind. A couple of years ago I bought what few parts I could from brother's to rebuild the Z-bar on the frame.

I'm wondering now if I should just cut my losses and maybe replace my whole brake/clutch pedal assembly with one from another truck. Or is it possible that I can fix mine and make the rattle go away.