Spindle dimensions, backing plate bolt pattern

[Rascal21]

I`ve been trying to figure out whether my spindles are OEM or not so I can determine what struts I need when converting to adjustable shocks w/coilovers, but I cannot find OEM dimensions ANYWHERE
I`ve been looking through google search results for ae86 spindle and ae86 caliper brackets for the better part of 24 hrs now and my eyes hurt, so I give up and ask here

My own measurements for the spindle is 112mm from the tip of the threaded end to the end of the spindle (where there is still clear metal).

Caliper backplate mounting dimensions on the spindle:





Anyone knows what kind of spindles these might be? I can only determine that they do not look like AE86..