I need a rear brake hose for a 69 charger with an 8 3/4. I have looked an come up with two, raybesto bh 36610 ( 8 3/4 ??) And bh36503 ( Dana ??). Both of these hoses in the pictures show a threaded end rather then the y block at the rear end. The block on my old hose appear to be one piece.

Are the pictures and description of the new parts or does my block separate from the hose

Sounds like your is integral. You could get a triple female inverted flare block from the Edelman fittings cabinet at your parts house then use the correct hose of your two choices and screw it into the block or keep searching for an integral one. iirc a mid 70's D100 pickup used an integral one (& had a much longer hose that I needed at the time for my arched springs). the right length integral one has to be out there for you somewhere

Thanks. Someone must have replaced it before. I will have to find the correct y block

before you spend big $ on something through the 'restoration' places check with good ol' NAPA or RockAuto. they have or can get a surprising amount of parts like you need. if you don't see it online, take the time to go in. the older NAPA's have catalogs they never throw out and once they have a part number they can get it!