If you have a buddy, the coolant hose on the passenger side isnt too bad if someone is pulling on the hose from the top and someone uses some really long handled needle nose pliers from the bottom. Otherwise its pretty straight forward. There is a bolt/stud on the back of the cooler that they say to take out that you can only get small turns out of at a time and if its like mine its tight the entire way out. good news is you dont have to remove it because the bracket it holds is slotted so once you get it loose the bracket will slide off. itll be a couple hours tops. as mentioned above if the truck is fairly new, id just save the coolant in a clean bucket.