I did it twice on my car,a lift is definetly needed,also the proper tool like a pry bar,torque wrench and some pb blaster and antiseize,Put it this way one side I believe its the passenger is not bad but the drivers side is a pita,and while your there insulate that 02 sensor wire by the oil pan,heat exposure,and double check the original gaskets for reuse,total 4,hope this helps.