The a/c stopped working in our 2017 Yukon, 70,000kms. GM diagnosed it as a leaking condenser. They said its a common problem with them but is no recall and quoted me $1100 to replace it but they are on back order and no idea when they will have a replacement. So I am wondering if there is a reliable aftermarket option available? And does the whole front end have to come off to replace it?