HOW TO: Change your leaky shift selector shaft seal with this $9 Tool Th350 Th400

https://www.napaonline.com/en/p/BK_77... This was supposed to be several parts. But I had computer issues.. Fortunately I was able to save the most important video segment. I am in the process of resealing the TH400 In the past I would drop the pan and remove the entire internal shift linkage to replace this tiny little seal.. My friend has the correct tool to do the job and he was nice enough to let me borrow it to do the job without breaking the seal. Installation is opposite of removal. I used a piece of rolled plastic to buffer the seal to shaft surface. It keeps the seal lip from rolling in on itself.. I was un able to show that process unfortunately. Anyways let me know what you think..