Mike, Thanks for the sharing your procedure and I am considering removing the tube/differential housing. I already have the gasket and it should make working on it easier and a more relaxing. When I get the bushings and seal removed I will decide which way I will proceed. Oakie or go back to original. I looked around online for the correct tool that is used to install the seal and have not had any luck locating.
I will keep you posted on my success.