The red poly bushings were a good replacement for the old dry rotted rubber bushings. Instillation is very simple; a few of the OEM bushings will need to be touched out but this is a very quick and easy process.
It should also be noted that often after replacing the rear mustache bar (pictured) bushings a diff knock may be felt. This happens when the main diff mount is worn and needs replacing. (main diff mount is not part of the Energy kit)
Although the Energy kit includes the sway bar link bushings and hardware it does NOT come with the chassis bushings. Theses are about $10 on a separate order