What ford axle is this?

I planned on using this axle in my model a, but the bosses for the spring perches are worn VERY bad, pretty much oval. I need to replace it but I dont know if its a model a. I think it is a bit wider.
kingpin to kingpin center=50.5"ish
perch to perch center=36.25"ish Thanks in advance ford guys!

 

Here is a pic

 

that is 28-31 model a

 

James is correct

 

front!!!!

 

Thanks for the quick reply fellas! Are Model A axles all by themselves or do later years match up?

 

I used a 32 axle and a reverse eye spring on my A..got a bit of drop to boot...

 

...I just found this chart on the hamb, now I am really confused.Is this chart wrong or my axle is bent or something? Kingpins..perches..perch thickness

1928-31..51 7/8....36 1/4...2 1/4....continuous curve across

1932-36..51 3/4....36 3/8...2........ends curve more

1937-41..50 7/8....38 1/2...2 1/4

1942-48..52........40 5/8...2 1/4....1948 has holes for tube shocks

 

Morning bump.

 

Model A

Why don't you just bush the spring perch holes?

 

Don't know about your measurements, but that is a Model A axle.

Read here.

http://www.roadsters.com/axles/