Is there a way to identify a Saginaw steering box from the casting number in the side of the body? I have a GM Saginaw power steering box, but I don't know what it came out of (it came with the project truck we bought). I need to rebuild the box, but I want to make sure I get the correct rebuild kit before I spend the money on it. Here are the numbers on the box. . .7826692 on the top by the cover with a 324 upside next to it. . .5693463 is on the front cover, there is also a small round mark followed by a 4 on the top by the cover as well.