I hear everyone talking about how it is such a huge job , on a technician level ( no) . On a DIYer level (yes). It is a 15hr job book time. Make sure to ck all actuators and add oil to the system when fixing the leak. Save yourself the trouble and get a ACM evaporator , it comes with e-valve and they last forever. I have used them for 6 years now . I did a couple 124's last week , evaporators are coming out now that its getting hot.I would advise nayone to let their techs do it though, it wont take a couple weeks .