Parking brake question(s)

[craig32]

Greetings all, I just ran into a new problem trying to get my 56 inspected. Seems I need a parking brake! My truck has a 76 rear axle with NO PB cables, the originals are both cut off, the forward cable also cut, no nothing inside the truck. I have no idea what it's supposed to look like, pedal or handle, or where it mounts and how it is run. I've looked at trucks on ebay trying to figure it out, but most of them don't look like they have them either. I saw a sketch in the LMC catalog that leads me to believe it is a dash mounted lever, with a rod probably going through where the new wiring harness is, to some kind of swivel that I have no idea where goes, probably on the frame horns for the transmission mounts that were also cut off. The lever in the middle is still there (with three cut off cables attached) and a pulley on the frame by the master cylinder. If I can get rear cables in order, I can probably mount a handle between the seats, but it is only about a foot away.
SO, does anyone know if the original 56 cables will work in a 76 rear end, or do I need to get 76 cables and somehow get them to fit in the 56 apparatus, or do I have to do the whole thing from scratch? Thanks!

Craig