ok i poured in some gear oil into the stearing box on my 1948 ford 8n tractor and it dripped back out from a hole in front of a plug on the bottom of the tractor the hole it dripped out from is like on the bottom by the transmission and there is a big drain plug then the hole is infront of that big drain plug, anybody know what that hole does and why its drippin the gear oil i put into the stearing box?