I have a Cadillac Escalade Truck...not SUV?

well that is just stupid, although a lifted cadd. is rare. that must be why no one wants to work on it. well where have you tried calling and where do you live? also what type of suspesion kit is it? try and find a shop that specializes in lifting...that deals with kits like skyjacker and such. if that doesnt work, consider selling it and just getting a stock one.