NewcomerComanche

Another (possibly) dumb question that I can't seem to find a consistent answer to. Break line diameters, are they consistent between hard and soft lines on the '88 or am I frankensteining a few fittings? I'm seeing 3/16, 7/16, and 3/8 on different write-ups. Is it simply a bad idea if I'm swapping out lines to grab new lines all similar diameter? And is there a reason soft lines are different size than hardline?

Realistically speaking, I may stick with the stock brake setup, save for deleting the rear load valve. If the boosted brakes serve only to upgrade the brake capacity, then it's potentially something I'll look into later on. But right now I'm going to stick with the things to get it to pass inspection. Brakes, tires, hoses, and lines. Luckily, it seems there is minimal electrical work that needs to be done for the moment. I'm sure plugging into a computer will say otherwise but

Alright you guys are seriously awesome Now, I've bled brake lines before, but never so much as took a wrench to them. And I'm a man with limited wrenching experience. Can I do the brakes myself or with a friend's extra hand? How daunting of a task we speaking? I already feel the truck calling for me to play with it though, I just wish I didn't work all god damn day

So in other words, there's nothing wrong with the open hole? Or is there some cap or something to toss on it?

You guys are awesome, I didn't expect anything until this afternoon the earliest. Brakes are squishy running and off, returns to normal resting positions after pumping them. Also I'm aware I'm missing an air hose from the intake box to the valve cover. The grommet is still there but the PO plugged the holes with tape and what looks like a finger from a cloth glove 🤦 anybody by chance have a part number on it? First pic shows location (hard to see) but look just under the belt and you'll see the bloody gaping maw

I bought a comanche. 1988. The thing is god damn beautiful (besides the rust but New England is New England so) I do have a few questions though. I've looked through the forums and seen many a post about brakes and am curious. My foot goes to the floor and it just starts to get pressure. Guy said it was the line, I haven't had time to run it anywhere to get it looked at. Also, and the most confusing thing of all, there is a pipe coming from what I see to be the engine block that has no cap, no hose, no line. It's off the driver side towards the front of the block and it extends past the header and curves upward? Also notable that while running, there is some positive pressure coming from the pipe but it's a rapid pulse, not constant like a fan. Will update with pics if people are still active on this forum