I have a 1994 4.3l c1500 single cad reg bed 2wd with 212k and its leaking water under the truck look to be where the tranny meets the block. I had someone look at it and said it was the intake manifold. So I change the gaskets and it fixed it for about 5 day no leaks. Then it started again. It leaks when the truck is off to a real fast leak. I think it might be the real plugs and I pulled the starter and their was water that came down on me when I removed it. None of the freeze plugs I can see are leaking. Is their and hidden if I pull the tranny?

 

I take it you are loosing anti-freeze. Yes there should be freeze plugs on that end of the engine

 

Is it near the top of the block or the bottom where I could pull the tranny to get them?

 

Yes.

after you get the tranny off you should see them, can't remember how many on the back of those 4.3 blocks.

 

Ok thanks. Ill start pulling the tranny tomorrow