I have a Ford 3910 Black Stripe tractor with power steering issues. Shocking isn't it? The gear box is leaking and has way too much free play. Does anyone know where I can get a 3910 power steering gear box? I would prefer a white stripe (early model 3910) gear box since the research I have found says that those do not tend to leak while all of the black stripe (later model 3910) gear boxes seem to leak. I would also be satisfied if there is an aftermarket replacement. I have been unable to find anything that will work to fix the problem. The box has been taken apart and the seals replaced already and it did absolutely no good.