I traded in my BX2350 for a new tractor. Dealer let me keep trade in until new one came in. As luck would have it when mowing the gear box started smokin due to my lack of maintenance (low on oil in gear box) and I will be responsible for fixing it. My question is does this situation normally require a new gear box or could it be repaired as I dont really want to spend a couple of hundred dollars on an estimate and then end up buying a new gear box?