Hi Harvey I have rebuilt the BW35 gearbox after failure of the front bearing. The box has been running quite well but I have been getting a whine from the torque converter when stopped good gear change up and down and strong reverse. Today whilst on my way to work I lost top gear and reverse. Could this be just low fluid, rear pump failure, rear band failure or clutch failure? Or it could be something else. Your advice would be superb. Thank you. Stephen