[64shortbox]

1BAD65,
I'm sure you're way past the stage BUT I'm CHEAP & LAZY - I even used ALL the solid brake lines, proportioning valve, master cylinder & vacuum booster from the 73 donor C-10. It was a perfect fit but I did have to make a bracket to mount the proportioning valve - or combination valve as GM calls it. Of course I couldn't stop there I modified the 73 brake pedal to fit & added a 72 Nova throttle pedal - oh and the combination radiator overflow & windshield bottle came from a Ford truck but it's a perfect fit for our trucks and as hot as it gets here in the central valley the radiator over flow tank comes in handy. I purchased the vacuum booster mounting bracket from CaptianFab - an excellent piece by the way.