Hi got mk2 fiesta with a race built 1.3 cvh in it and all it keeps doing is ripping apart the gear box mounts have tried uprated polybush mounts but they end up the same so as a last resort i am thinking of welding bits of box between the gearbox mounts and the crossmember totally removing the rubber mounts have done similar on bangers and they r harsh ie, rattle ya fillings out but cant think of any other way to stop the engine ripping mounts