Overhauling a manual transmission can be a challenging task for home mechanics. It involves disassembling and reassembling numerous small parts, as well as accurately measuring and adjusting clearances using shims and spacers. Obtaining internal transmission components can be difficult and expensive. Therefore, it is often recommended to have the transmission overhauled by a qualified transmission shop or dealer, or to obtain a reconditioned unit. However, experienced mechanics with the necessary tools can undertake the overhaul in a systematic manner. The tools required include snap-ring pliers, bearing pullers, a slide hammer, pin punches, a dial test indicator, and possibly a hydraulic press. It is important to carefully document the installation of each component during disassembly to facilitate reassembly. Additionally, having an understanding of the specific area of malfunction can aid in component examination and replacement.