I am about to put my 55.1 hydra-matic back together. The torus cover has a small groove on the outside surface of the neck that seals with the front oil seal. The new seal seems to be tight. Has anyone used a worn torus cover and had problems with leaks? Has anyone had experience with reconditioning these torus necks? Also have some rather worn shifter linkages (the posts that fit into the levers) that I fear might sheer off. Anyone tried reconditioning these or should I just remanufacture them. This would take some time.