I have an early 8-3/4, need info on

Could be 30 or 35 spline axles.Won't know till you open her up.
I had one out of a 58 Dodge 1/2 ton truck.The pumpkin was a 857 (I think). It had 3.58 gears.30 spline.
Been awhile not sure of the "8" but remember the last 2 were 57.