How to save money by choosing to rebuilt your transmission. Rebuilding an automatic tansmission can be a significant expense. The cost varies depending on factors such as the make and model of the vehicle. In addition the extent of damage or wear to the transmission components, and the labor rates of the repair shop. Generally, rebuilding involves disassembling the transmission, inspecting and replacing worn or damaged parts, and reassembling it to factory specifications. This process requires specialized knowledge, skills, and equipment, which can contribute to higher labor costs. Additionally, the price of replacement parts, such as gears, clutches, and seals, can add up quickly. On average, a complete transmission rebuild can cost anywhere from $1,900 to over $5000 or more, depending on the aforementioned factors. Furthermore, the cost of rebuilding may approach or exceed the value of the vehicle. In fact making it a significant financial consideration for car owners.