I have a CIH 385 with the short tires on the back causing me to not have enough lift for certain implements.
So I'm wondering if a machine shop could make more threads on the shafts of the leveling screws on the 3-point hitch?

They look like 7/8ths bolt threads, but I don't know how hard they are. I figure they would probably be a grade 8 or better.
What do you guys think? Can hardened bolts be threaded?