How can I tell if my tube axle is for Ford or Chevy spindles

I purchased a lot of parts that included a drop axle. I am new to this and want to know how I would tell if it is for ford or Chevy spindles?

 

How about a pic and some measurements...i.e. boss height,kingpin bore??? I've got 2 sprint car axles I've yet to figure out!!!

 

fords are round 37-41 ...square 42-48....chevy49-54 look like a sloppy I

 

here is the chart on spindle ID.

 

Sorry, guess I should have went more in depth. I have no spindles, just the axle. Just wondering how I would be able to tell if the axle is designed for use of ford or Chevy spindles.

 

see the chart for the axle boss size and measure yours, compare.

 

Chevy spindles are .867 I think and Fords are 3/4 inch maybe?

 

Ford kingpin size is 13/16 - .812

 

Good info Guy's !!!!!