You probably cannot, but iFixit gives the Fire a repairability score of 8 and the iPad a score of 2.
http://www.ifixit.com/Teardown/Kindle-Fire-Teardown/7099/2#s...
Main positives are for ability to remove the back side and use of Phillips screws: big pluses. However, primary iPad issues: glued on front glass, RAM, persistent storage: all true for Kindle as well.
You probably cannot, but iFixit gives the Fire a repairability score of 8 and the iPad a score of 2.