I figured out the best way to fix old cracked tires, it’s also the easiest and cheapest way to do it, you don't have to take the cat trax all apart. Inner Tubes do not hold air as long as tubeless tires do. Inner Tubes cost too much and you have to take the cat trax all apart and take it to tire ware house and pay them to put it in the cat trax tire.
I got tired of having a flat cat trax tire for over a year, they get old and cracked.