Do you want the absolute easiest solution? Well, here it is: Use polyurethane bushings, and leave the sleeves in place!! The polyurethane bushings come with a special grease so they don't squeak, and are lightly pressed into place. Done!!
I use poly with the lube on my not so stock jeep suspension, But....I purchased the whole bushing package for the cuda so I'm going that route. In any event its ready for whatever coating I decide to ut on it before the bushings go back in.
Joe