Hy Old Gold, I could not find that number in my books from 55-59, I'm assuming from the date code it was made in 56. Quite often casting numbers are not the same as part numbers. Could you give us some more clues, is it a V8 or 6 housing, does it have an angled mounting surface or is the mount surface parallel to the ground, is there one hole in each mount pad or two?
