coolant leak

[thomslilly]

I have a 1988 GMC 1/2 ton 4x4 with a coolant leak. When I pour water into the radiator, it pours out of a hole at the bottom of what I think is the transmission bell housing. It looks like there is a plug of some kind that has popped out. The hole is about the size of a bb and is really clean as if it has been machined.
Any thoughts?

[wafrederick]

Could be the waterfitting which the factory piece was made out crappy pot metal.Watch out it will break and it is a pain to get the rest out of the intake.The replacement is made out of steel.It can be intake gaskets also.

[JIMCADYSR]

What motor ? 5.0and 5. 7 have 2 freeze plug at the back of the block next to the cam plug.