power steering box re-seal ?

when I did my 67 Dart GT I went to local parts house to see if they could order me one. He asked 6 cyl or v8 and I asked why and he said the v8 has a faster ratio so since I was putting a sb I told him v8. He said no problem I have both in stock and they are the same price. Don't remember price both wasn't too bad. So you may want to check parts house