Picture has the plow upside down.
Glaringly missing a wear blade /edge. And plow skids (stock on some back when) or shoes.
You have a straight piece instead of of horseshoe where the arm pivots on tractor frame /tube..
Behind your front axel are square holes cast in your frame.
That wants two metal blocks as bushings for your through-bolt to go through.
Ok, I'm down to the last thing before mounting my snow plow. I ordered new spacer blocks from TM supply. Good price by the way. The hole in the blocks seems to be 5/8 size. However the long bolt that goes through it seems to be 1/2" size. Is this what every one else has? It just seems sloppy?