I just had one of those Ford aluminum finned rear differential covers installed and now my valve is badly leaking fluid. Does anyone know where I can buy one of those Turkey Baster valves, or, whether there is another solution. I suspect the existing valve may be no good due to is being already dirty there from prior leaks. I can replace that, but I'd feel better if I can get one of those basters, I think that would be a better fix.

Any help on locating one would be appreciated.