Hi, does anyone know what kind of ****** jack this is? I just picked it up, and it leaks out of the top. I'd like to figure out how to rebuild it, but I don't even know what kind of jack it is. I have been looking online, no luck. The owner said he bought it new probably in the early 80's and thought it was a blackhawk or a HEIN-WERNER. The only number I can find on it is B10365 and the "1" is hard to read, it may be a letter. Thanks in advance for any help...bob
