you have to take the shock/spring combo off the car would be easiest way to do it. the fronts are really easy to do. the rears, the LCA bolt seems to always break on people. So just use caution when doing the rears. what i did i just left the LCA blot on and compressed the spring while the shock was still attached to the car. I recomend haveing a friend help out. When a friend and i did mine it took like 4 hours to do the rear alone. And yea jack up the car. any way you will need to take off the tires to get at the shock/spring combo so yea you will need to jack up the car. make sure u use jack stands cause a car supported on jacks only is not good. Any more questions just ask.