I have a customer with an older clark c500-100 with leaking lift cyl seals in the upper rams. usualy my company sends these out to be rebuilt by a cylinder shop, but the customer is concerned about long down time. I have a friend who used to work for a clark dealership who said that theses aren't to hard to repair if you have the correct packing tools, and impossible if you don't. Are these packing tools available for purchaes and where can I get them if they are? I can get the mast and cyl #s if needed, I just don't have them right now. thank you. Andy.