There are several "lunch-box" lockers on the market today, named so because they can be installed in your driveway in a few hours with basic tools. One of the quickest and easiest ways to get more off-road performance out of your 4x4 is to install one of these lockers in the rear. The rear axle provides a greater percentage of traction than the front, so installing a locker in the rear yields the greatest benefits. We set out to install, document, and review one of the more well-known "lunch-box" lockers in one of the most common 4x4 rear axles, the POWERTRAX LOCK-RIGHT in a Dana 44 axle.
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