6K1430 contains 8 segments; 5 x 4-bolt and 3 x 3-bolt. It is the correct part for a machine S/N 85J29xx. If you get round to replacing the sprocket segments I suggest that you pay close attention to inspect if any of them show any signs of having been loose. If that is the case the bolt holes in the rim will likely be wallowed oval and even with new bolts correctly tightened there is a good chance that the replacement segments might also tend to move which is not good. Come back and post again if you find that your segments have been moving before installing the replacements.
Back to your track shoes. You have to be aware that dozer tracks are designed for traction and for pushing loads in a straight line, that's why they have tall single grousers. Usually when a dozer turns it's with the blade in the air, not like a loader that often turns with a loaded bucket in the air. The high dozer grousers will put stresses on all the undercarriage components - idlers, track rollers, carrier rollers, and sprockets. I'm not saying you shouldn't use those dozer tracks, just that you have to be aware of their downside when used on a track loader.
