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No, you shouldn't need it. Just jack the truck up so the wheels are in the air and loosen the adjuster bolts. You might have to do a little prying or something to get them started after you put the new keys in.
Yes you will need to pry down with a crow bar close to the tbar cross member to get the old key off and the new one on. It aint hard at all. You got any questions just ask. I just did mine a few months ago