This video follows the marlin crawler manual for re gearing your gear driven toyota transfer case: https://www.marlincrawler.com/sites/all/marlin/files/docs/470-installer.pdf It shows tips and tricks to help with the install. It also shows some of the tools and skills you would need to install these gears. This is a fun modification that is pretty easy if you take your time. It takes a couple hours to a day to do depending how long you spend cleaning all the parts. The 4.7 case is awesome and completely transforms the vehicle off road, I highly recommend!
