The hexagonal inner sleeve & poly will work for a-arm bushings but not for the D-shaped bushings used as pivots in the middle of both anti-sway bars. And you should NOT use polyurethane bushings on the outer ends of anti-sway bars. The bar ends go though a complex multiplane motion while driving, and even soft polyurethane is far too stiff to do this. It can and has cracked steel a-arms. For the 4 bar ends, use those sphere-ball ends sold by the vendors. Or rubber- which is soft enough to flex but removes some of any size anti-sway bar's effectiveness.
I suppose one with a hoist and a lot of spare time could install zerk fittings in the a-arms and anti-sway bar centers without removing the parts. Zerks are threaded 1/4-28 SAE and you only need a few threads, as there's really no force on them. But by removing the a-arms and sway bars to do the drilling, you can also cut a spiral like the twist in a gun barrel on the inside bore of the bushings. This will tend to spread grease along the length of each bushing. Then when one does a Spring Tune-up to their car, a stroke on a grease gun for each zerk only takes seconds. Don't forget to also add zerks to the 6 ball joints and the two tie-rod ends. Ford saved several pennies by leaving all these out.