Passenger side is a little easier to do if you remove passenger side motor mount and just jack up theat side of the engine. All you need is about 1 inch. We do not remove anything to change them. But we have quite a few under our belts. Do not remove the a/c plenum. You can not get it out very easily without removing the accumulator and you have to discharge the system to do this. Adds about 2 or 3 hours to the job.