Using Subsoiler to unearth hidden rocks

/ Using Subsoiler to unearth hidden rocks #2  
I also use a subsoiler (single tooth, heavy duty) to roll out hidden rocks (left by the glacier long ago).

I found that placing a heavy duty chain below the 3 ph arms on the tooth connected to the tractor drawbar adds more pull and takes out the compressive forces on the top arm assembly. More of a direct pull to the drawbar.
 
 
 
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