Technical Steering box identification

Does anyone know what steering box I have is. It came with my car in a box of parts and I was trying to see what it is.

 

Im thinking 53-56 Ford F100,but the later 57-60 look alike,but are a bit different.

 

The sector looks big. Measure the diameter. Maybe it’s from a big truck.

 

Looks like 59 f100

 

53/56 F series most likely. Then you get down to the details as Irishsteve said. Ebay listing for one for show and tell eBay item number:134338819901