Thanks Ratickle ,No need to call for help,as it was pretty easy fix ,the new seal is in the port transmission ,and filled up with oil ,and so far no leaking ,gonna check tomorrow ,and next saturday when we are going to run on the hose again to see if the trannies shifting in first and second gear ,I will watch those seals closely ..
Did a lot of work in the wet room ,toilet ,all hoses ,water pick up ,hoses to holding tank ,holding tank out ,etc almost finished with that ,wiring to electrical toilet motor ,etc , not the kind of work that is in sight ,but it takes a lot of time .
Also did the lanyard switches ,they needed a timing relay installed on both ,because of the selenoid keeps on pulling the cut out lever on the diesel pump ,and burns itself after some time ,now I set the relay at 8 seconds timer ,so the power is been cut off .