We're back from Silver City, New Mexico, where Bill Lee of Bill's Toy Shop installed an ARB locking differential in the rear of the JATAC (see below for part 1). We've created a 13-minute video detailing the installation and a bit of trail testing afterwards. Watch an ASE Master Technician at work, then see how the increased traction works in the real world - from underneath the truck. Watch it here, or click on the video title for the full HD version on Vimeo.