you might be able to remove the extra smaller linkages and go straight to a hyd cylinder, for a more robust design,
but hard to tell from pictures,how the smaller linkages, allow for the rippers to move up and down.
or...
go from the back side of the box (top edge of it, to the manual handle (drill hole in top of the handle) to place a hyd cylinder.
but you may end up twisting linkages / bending linkages going this way to raise / lower the rippers.
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use it and abuse it, forget the paint i say, looks like a good piece of equipment, after some good usage, rust will go away from were ever dirt / gravel comes up on cutting blade and lower parts of the unit.
i am wondering if only 4 rippers are on it, is due to over all weight, and compaction / hardness the dirt / driveway, original owner was using it for.
doesn't look like a easy place to add extra weight to the box blade. so some rippers were removed.
