Replacing a flexplate can cost between $50 to $160, depending on various factors. Factors include the vehicle's make and model, type of flexplate, and repair location. The flexplate connects the engine to the torque converter in the transmission system. A damaged or worn-out flexplate can cause vibrations, engine misfires, and shifting difficulties. It's crucial to replace a damaged flexplate promptly to avoid these problems. Consult a certified mechanic or auto parts store for an accurate estimate for your vehicle.