i have a 02 chevy silverado 2500hd diesel and i just bought it and has 168,000 miles on it and the issue i have is with the tcase the first thing to list is the slip yoke catching when you let off the brake from a stop it would clunk and so i knew i would need to replace it with the nickel plated slip yoke. so i have not done it yet i just took it off and greased the slip yoke and temporarily make the noise go away but when i took the slip yoke out no fluid came out of the tcase so i knew it was not full so i went to take the fill plug off and it was already striped out so i torched it carefully and got the plug off and still no fluid came out so that was not good and then i took the drain plug off and not even a half of a cup of fluid came out and a small piece off plastic came out as well and i knew that was from the shift fork if i am correct??? so now i got a new drain plug and filled the tcase with auto trak II and now its leaking fluid from the slip yoke or output shaft seal and my question is do i replace the seal or the slip yoke or both?? or what should i do and where do i get slip yoke from if i do the yoke. and there is no noise from the tcase and the 4wheel drive works fine and no other holes or leaks from the tcase. thanks for the help!!