To answer the question is there anything that can cause this, is yes there are a few failures that I can think of, but unfortunately they all have to with the forward drum and all of them will require the transmission to be removed and be repaired "rebuilt". Most of the transmission failures I see come through my shop are due to part failure and they can happen at anytime regardless of mileage. You should be able to find a shop to rebuild this transmission with all the goodies for 2 to 2500.00 with a warranty.