What is wrong with your Escalade? I may be able to tell you what to do depending on what the issue is. I hired a driveway mechanic to change my upper/lower control arms, sway bar bushings, brakes, steering rack and stock absorbers. I purchased the parts locally or online than call the mechanic to come during the week before noon just incase I need to chase down parts or he finds something else that needs to be replaced. I bought my truck to Firestone for alignment after he was done with the suspension parts. What I learned is to fix it all at once to save money meaning that if I need the upper control arm, I would purchase the lower control arm, sway-bar bushing and end-link and whatever else he removed that looks bad. I found it better to replace the rotors and pads at the same time and if I have over 100k than replace the calipers. I use OEM for most of the stuff except the brake pads, calipers, upper and lower control arms I chose to use DuraLast Gold from AutoZone which comes with lifetime warranty. The front struts and rear shocks should be OEM only as well as the end-links and bushings. There are somethings you will need to bring your truck to the dealer like a new transmission which comes with 100k 3 year warranty at any dealer or lifter failure issue. That is why this forum is good to find info on what to do.