Why bother? Just hook the chain or binder on the inside edge of the pad, 4 corners..done, unless Texas requires one on the blade
Actually they require a chain on the blade and ripper. So it takes 6 chains total.
Hooking to the tracks works that is how I secured it when I brought it home but I don't really like that method, especially on smaller dozers like this as I can see the track deforming as I crank it down. Also I have to fully tilt the blade to get it under 102" on the trailer which puts the blade right in the way of where one of the front pad attached chain runs. The D-rings won't take much time at all to install and will make things easier.