You've probably bent the deck area around the spindle.
Mike

Emmitt99 - remove mower deck from tractor. Take a good close-up pix of damaged area. Post back here so we can see what happened. Also look into chassis cavity under tilting seat - get full 917.xxxxxx model number off ID plate/decal - post here so we know exactly which machine you have.

I have hit things and had to have the wheels welded back in place, but never damaged the spindles.

I would suspect you can tell if anything is bent using a variation of leveling your deck. The tip of the Blade should be the same distance from the ground all around the the circle that the tip moves when the blade is engaged.

If there are differences in distance the original tip is from the ground as it goes around the circle, it could indicate the spindle is bent. Both tips should be similar distance from the ground.

All blades should be check, and the distance from the ground should be similar for both blades