Need help Identifing spindles(straight axle)

Picked this up the other day, just need to find out what these spindles are off of, I want to pick up some new kingpins, bearings, and freshin it up.
TIA guys

 

Let's see a better shot of that rack, Wade.

 

50-54 chevy???

 

Which rack? j/k

These are the only other pics I have of it, and the camera has left my possesion(wasnt mine anyway)

 

They appear to be 49-54 chevy.

 

Chevy king pin dia is .867 and length is 5.3. What's the bolt circle on the hub???

 

49-54 Chevy for sure. Speedway has kingpins and all the misc. hardware/

 

5x 4.75 Chevy pattern, but I was unsure if they are aftermarket.

Does anyone know the "height" of the axle in between the spindle? Or distance between early chevy spindles, where the kingpin goes?

I thought at first it was a Speedway axle possibly, but I dont see any of theirs being this wide(54 inches kingpin to kingpin)

 

Thanks a ton man!
Kinda wanted a firm answer instead of guess
Didnt know if anyone actually knew for sure or not.