What style of tires are installed?
If turf tires, then add more cross chain, ie every 3rd link which would result in nice ride and always in ground contact.
If industrial or deep farm threads then U have little choice but to go to the H pattern as the cross links simply fall into the deep grooves and become rather useless.
The problem in building up a H pattern is that you will need a massive amount of S hooks to attach all those short lengths.
Better might be to add some largish rings between , say, 1 and 2 (skip 2-3) and then 3-4 etc.
To fabricate the rings you can slice sections of pipe (say 4 or 5") and weld to the cross links.
Another and better solution would be to obtain a coil spring as used on a pick-up suspension and create rings by cutting and welding. Again using the 1-2 3-4 pattern
Coil springs being a hardened steel will wear longer.
However all in all with the time involved purchasing new chains might prove to be the way to go.
My tractor is turf installed and I modified my chains to be every 3rd link.
The ride is so nice that I often wonder if I forgot to install the chains.
Originally my chains were H pattern using S hooks to create the box pattern but every 4-5 outings or so one of the S hooks let go and I had a horrible tangled mess to content with. And usually far from the shop.
After a half dozen frustrating episodes I pulled the chains and completely modified them to cross or ladder chains and then later added the extra cross links to make a slicker ride.
Withe my earlier (5 spaced) ladder configuration I noticed that I had a slip/grab situation as well as a very bumpy ride. The additional crosses completely cured that situation.
Another observation is that the 3link ladders do not dig in while the 5 link would slip/dig like crazy to the point that I once needed to actually jack the tractor and fill in the holes in order to get out.
Hope my experience and observations help some.
Good luck.
