Manual steering box identification

[mhm1966]

With turning the steering wheel, I get one and a half turns from lock to lock. The machined pad has a 7 or Z stamped on it. This box does not look like the manual steering box that the CRG has a picture of. My box has the number 5679142 to the left of the "S" and the CRG picture has the number 5679142 to the right of the "S" on the box. So the box I have does not have a assembly date or a casting date on the box.