Can anyone shed light on parking brake cables.. ?

Here's what should have been on a '75, routed like the 3rd diagram that was posted. Pics of bracket inside frame in front of rear with connecting link between cables(other side similar), and front adjuster hook on passenger side. Main cable hooks to a similar bracket on drivers side corner. There is also a small s-hook above the trans mount. This is on a 7-1/4 rear. Don't know if your cables into the 8-3/4 are different. but I would think the intermediate cable would be the same. I can't find my notes on length at the moment, but the factoy part # is 3575585. I believe they used a longer cable for 75 than for 74 and earlier.