I made an inverted `T` that fitted onto the rear three point linkage. It is made of scaffold pole with the right size pins welded to the bottom for the draught arms and two bits of flat at the top with a pin for the top link. Now to attach a chain, I welded a couple of pins about one inch long, and just wide enough for a chain to lay side ways between the pins. I got my chain and found a shackle to fit the end link of the chain. To pull up my bushes, I backed up to the bush. Drop the arms as low as they will go, Then pass the chain around the base of the bush and feed the chain through the shackle. Next I used to pull the chain as tight as it would go and take the loose end and wrap it a full turn of the bottom bar of my inverted `T`, and drop a link between the two pins. By lifting the arms, this would pull on the bush. To be fair, I had to be careful some times my tractor wheels would come off the ground, and some of the bushes did not give up easily. They got special treatment by me lifting on the arms, and driving forward and then backwards into the bush whilst at the same time lifting. The first chain I used was not strong enough so I found a tougher one.