With the proper tools I can safely swap out keys in under an hour, but this is on my truck. Your keys may be seized to the bars, the C-clamp you use might break, who knows. I will tell you this though, keep in mind that your torsion keys/bars support the whole weight of the front of your truck so it takes a lot of force to load them, while the C-clamp will probably work to unload and remove your stock keys it may not be up to the task of loading your lift keys. The difference in the clocking of the hex hole doesn't look like much but you'll be amazed at how much force it takes to get it into position. I was lucky and was able to borrow the G.M. tool from the local dealer (I know someone!), I know it's probably going to be difficult for you to get your hands on one without buying one, but you can also try a large gear puller, 7-ton or larger, just go slow and be careful and don't put any part of your body under the key when your loading it! No need to unbolt the shocks, not sure where you got that info, but the shocks don't have any bearing on key installation. Hope this helps,Be safe!