I have a disc brake set up from a 69 chevelle and was wondering if it will fit on my 67,I was also wondering about the power steering box,if this will fit also

Discs will go right in, as long as you have all the parts from the '69. The only catch I can think of offhand is that drum-brake rims may not clear the calipers.

Steering box should go right in, but I think you need to use the PS pitman arm also.

Schurkey is right on the button,did this a couple years ago on my elco.