Hy Tiny_Jaime, I think I have installed three of these type of setups for other people, in each case I had to modify the supplied brackets to make them lineup and mount properly. In at least one case I had to cut one apart and reposition and reweld it in order to make it work. I don't understand why there is such a radical angle between the bolt on piece and the booster mounting plate, that looks like where the correction should be made. I don't think that your friend is remembering correctly, as you said if one facility had a different mounting hole pattern/position how would the parts interchange with trucks manufactured in other facilities? If it were my project I would correct the parts so the top of the master cylinder was parallel with the top of the frame, hope that helps.
