Universal Replacement HD FK Uniball For UTV (WSSX10T-F1)Description Fits: KRYPTONITE Replacement HD FK Uniball For UTV If you've got a Kryptonite tie rod end, then it's possible that at some point, you'll need a new uniball for your tie rod end to keep you out on the trail instead of replacing the whole tie rod end. FK JMX JMXL Series 3 piece rod ends are precision built for high strength. The bodies and races are heat treated steel alloy that is zinc plated and chromate treated for corrosion resistance.