So I bought a salvage yard power steering box for my 1977 nova. The car came with a manual gear box. The pitman arm on the power gear box is 3/8 to 1/2 an inch longer then the original on the manual steering box. Everything seems to be visually ok. Is there any type of performance issue here? Everything seems to turn and move freely I just dont want to have a safety problem if I leave the slightly longer arm on.