You have to order both R and L. It requires the star female socket tool to remove the upper attachment of the liftgate on your Jeep. (You can buy one from your hardware store for just $3.00). With that and a piece of wood to prop your tailgate, you can install one in 5 minutes. The next one will take less time as you gained experience from the first one. Very sturdy and I believe, it might even be better than the original liftgate supports.