The information in this thread pertains to the first generation Tundras, model years 2000-2006. Much of the information can be extrapolated to the second generation with a little effort.
This thread began as "The Tundra Offroad FAQ", and is slowly turning in to a how-to for getting the most out of the truck offroad rather than a FAQ on lifting or tire choice. It is intended as a starting point for anyone interested in taking their truck one mile further, not necessarily one inch higher...even though at first, the latter often leads to the former. It is also intended as a starting point for searching the Offroad, Handling/Suspension/Axle, and Tire/Wheel forums for more information on a particular topic, or help with component selection or installation.
This is the combined experience knowledge and wisdom of many TS members since the site's creation, from owners to competitors and manufacturers. While I may be writing or posting much of the information, I would prefer to attribute the contributions to the proper sources...unfortunately that's almost impossible without a thorough scouring of the general forums. Suffice to say that everyone has contributed something, and I'm just the messenger for a lot of it.
Please send me a PM if you have something to add, would like to see something added, or if I have incorrectly described a product in the thread.