The problem you will run into in looking for a hose is that there is no hose! GM did not put a rubber line on those cars from the factory, the hard lines went into the calipers directly. When I did my rear disks, I wanted a little more play do I could easily remove the calipers if I wanted, so I added some short rubber lines. I may have the part number at home, but no promises! I just went thru the parts book and found a line that was either 8" or 10" and had the correct ends. One line had to wrap around the axle if I remember correctly...
Good luck,
Bill C.