[RICK LAKE]

bigrob Some yokes have a small pinhole in the yoke to let the air bleed out from slid joint. This is between the yoke splines and the trans output shaft splines. On some setups you have to put a little RTV about an inch into the yoke all the way round. Wheel bearing grease works well too but breaks down over time. This stops the trans fluid from leaking by the splines and out the hole if the yoke has one or remove the yoke and weld the hole closed. If it's the speedo outputcase, clean the area and install RTV around where the seal is. Make sure area is clean and let sit for 24 hours. Grey color RTV ONLY. The other thing is if the old trans fluid was well used, it looses it's wieght, 70W-90 and it gets thinner, some times it starts to leak out through seals. The problem I have seen is adding new fluids where old worn out fluids where and getting leaks. Output shaft seals are a common failure problem on high milage or hard drivin cars. Good luck with the leak, the dye works the best for finding them. Rick L.