There is another thread that covers this at
There are an abundance of chains that fit the trailhawk, when the correct tires and rims are mounted. As per Marks quote above
See the correct rim spec and mopar order sku on the referenced thread.
In order of increasing Traction
Thule style low clearance high$$
Round link ladder form
Square cut Diamond
Laclede Vbar ladder form
Tungsten studded Trigg chains $$$
The cable and Diamond style probably have the nicest ride. Any ladder form chain will be rough and have a lower speed requirement. The vbar and stud chains are for off road and have sufficient traction with four chains to pull a large stuck truck out of the ditch or use on a snow plow.
The Trigg Alloy ultra light cam lock stud chains will be on my xmas list forever...
In the PNW mid west, Alaska or Canada any good commercial heavy equipment logging, mining or transport service chain specialty vendor will have a variety of these chains and should be able to find you a pair small enough to fit the KL without laughing too much that it is the smallest vehicle in that day.
Retailers etc don't stock much that is worth looking at.
The chains should be easy to put on especially if mounted before you are stuck or the snow is very deep. Ensure that you use a spider bungee to keep tension on them to the outboard side
On the front end you will get the best traction for going up Hill or flat. After 500 to1000 miles ladder vbar chains can develop some wear in the side thrust bearings on rigid axle vehicles, the CV's on the KL are an open question. Going down 20% grades with tight turns both front and back chains are required since with only front chains on the vehicle will slip sideways into each switchback - potential for getting irrevocably stuck or roll over. In heavy deep snow 4 chains provide substantially more traction- To the point were you can break trail or tow even large tired chainless jacked up trucks.
If you don't put them on properly, go too fast, or use them on bare road they WILL tear apart your wheel wells rip out your brake lines, and detach and short out your anti lock control module.
Pulling out large trucks may result in chain breakage :-))
(Yep I think I've done or seen most of that)
Dry fit them at the dealer, Use carefully.
My favourite wholesale chain mfg /vendor is Quality chain
Peerless, Thule and a bunch of others have equally good stock.
Rough rider rigging......