After going through all of the available parts lists on the 9", 10", and early 12", I concluded that the four bed castings (four lengths) did not change from 1932 until 1957, when the heavier 1/2" bed was introduced. The finish machining and part number suffix letters varied over the years mainly because several different leg designs were offered (with different attachment hole locations) And where the two headstock positioning holes were drilled may have varied. So I am relatively certain that the 10F carriage will physically fit onto your bed.
However, I suspect that the tool post will end up half an inch higher because I think that the difference in swing between the 9" and the first 10" was made up by raising the top of the dovetail on the assumed 10-9 carriage by half an inch above where the dovetail was on the 9-9 carriage that you have. To check this, you need to lay a straight edge across the top of the compound slide and over the bed and measure the height. Then, run your cross slide toward the back of the lathe to uncover the top of the dovetail. Lay a straight edge across the dovetail and over the bed and measure the height. Someone or several someones with a 10, a 10D and a 10F needs to make the same measurements.
On the babbit bearing cap bolt torque question, all that I have ever found on the subject is what's on the page from all 1937 copyright MOLO versions shown below.
end.
.
