Overhauling of a transfer case is challenging and requires the disassembling and reassembling of many small parts. Select fit spacers and snap rings are used to take precise measurements of clearance in which adjustments can be made if need be. Even though it is possible for a skilled do-it-yourselfer to remove or install a transfer case, you should still consider having transmission repair shop perform the overhaul. Dealership parts departments and automotive stores might carry rebuilt transfer cases. However, an inexperienced mechanic can rebuild one using the right tools and following step-by-step process. The essential tools include: snap-ring pliers, slide hammer, bearing puller, pin punches, dial indicator-perhaps hydraulic press too. Additionally, a firm working bench or vice stand may be necessary for support purposes also for transmission repairs stand. In order to ensure appropriate reassembly when taking apart a machine notes have to be well taken care of by recording everything carefully while disassembling it all down.The broken part must first be known before examining it.