I had reached out to Lee Power Steering in Valencia CA in addition to First Generation Firebird. One of their service people called me yesterday. He said the Saginaw power unit is longer than the manual unit. He said look inside the car at the column, loosen to small bolts that hold the column to the fire wall. Next he said, just under the dash there are two nuts on studs in slotted holes, loosen those. In the picture the nut and slot are at the top. I was able to pull the steering wheel outward the length of the slot. This provided enough room to install the Saginaw box with the rag joint attached. I still have install the rag joint bolts and connect hoses. I haven't attached the pitman arm yet, but will shortly.