5S-FE MK2 Non-Turbo Engine S54 Transmission problems!!!!!!

5S-FE MK2 Non-Turbo Engine, problems, transmission, gear, fluid, changing, grind, shifting, wanted, mt90, find, 75w90, purple, up/down, royal, huge, manual, guys, leak, gears, feel, notchy, grinds, tranny, axle, shaftwhere, shaft, horribly

Hello guys am having some problems with my manual transmission after changing fluid. first there is a huge leak from the right axle shaft(where the shaft goes into the tranny). Also the gears feel to notchy and it grinds horribly up/down shifting to 3rd. both of these problems i did not have before changing the fluid...3rd gear would grind but not as bad or often. Im using royal purple 75w90 gear oil, i wanted to use mt90 but i couldn