Those mounts are a little different. Looks like multiple spring eye locations? Have to carve 2 sizable holes in the frame to accomdate bolts. One big hole on the driveline side and match the holes on the outboard side, leaving a wee bit of fudging room. That would stiffen up the entire assembly also. It probably relocates the spring in a true 3/4". Builder had the sense to gusset the inside of the bracket to stiffen up the double break on the out side. Very creative.
