Brass block on an 8 3/4 rear

I'm in the process of completely redoing the brake system on my 1967 Dodge Coronet R/T. I'm wondering the correct way to remove the brass brake block from the rearend. I have a new disc brake block that I got with the stainless steel lines. This is the reason why I'm planning on changing them. I'll be grateful for any information.

Thanks !

unscrew the bolt that holds it on...

Disconnect the lines first, the bolt will hold the distribution block for you. Then back the bolt on the block out. It's a little deceiving as the bolt goes down thru the block into the housing.