I have a set of tractor tire chains I purchased at an auction that came off a AC WD. I got them pretty cheap with plans to enlarge them to fit my 720 S Deere. The pile of chains had 2 complete tire chains and about 20 spare cross bars. I am looking for a place to buy about 10 feet of the elongated link chain to use for the side rails on mine. I have already used some of the spare cross bars and lengthened the cross bars to fit on my 18.4 tire but the chains still are about 2 feet short of being able to be buckled. Anyone know of a good source for this long link chain? Appreciate the help.