Looks like you remove the bolt from the pin then drive the locking pin out from the threaded end, appears to be tapered.
The shop manual looks like you attach a slide hammer type device where the grease fitting is removed and then pull out the pin from the shackle and hangar.
There is a hole in the frame on the back side of the hanger, think I can just pound that shackle pin out after removing the locking pin?