If you drive a Nissan equipped with a four-wheel-drive or all-wheel-drive system, the transfer case is one of the most critical components ensuring smooth power distribution between the front and rear axles. Over time, this component can wear out due to constant use, leading to performance issues that might require a replacement. While a brand-new transfer case can be costly, opting for a used one can be a more budget-friendly solution. However, buying used auto parts comes with its own set of considerations, and making an informed decision can save you from unnecessary headaches. This guide walks you through everything you need to know about Nissan transfer cases, from identifying potential issues to finding a reliable used replacement and understanding the benefits of choosing a used part over a new or rebuilt one.