Scotty, why did you not run the tractor with the leaky brakes? The brakes would have no effect on weather or not it would run? And there is no way id spend $100 on gaskets in your situation esp if im just going to sell it! Also i use razor blades just Like CD. I will break them down if i need a smaller one to get into a tight place. I had to break one of those pyramid shaped blades for the razor knifes just this last week when i tore down my stihl chainsaw. I left the crank case in the saw (really did not see an easy way not to) and could not even fit a razor blade whole in the tight spot so i had to break one into thirds. Oh the saw, i bought new from Stihl Dealer, cylinder was sealed to the crank case with red silicone from the factory, squeezed out and everything. I put it back togeather with trusty grey RTV.