I gotta 91 S-10 blazer with the 4.3 in it and tre freeze out plug in the front of my motor by the pulleys Rusted out and stoped doing its job...... how hard is it to replace, and what all is involved to replace it? dose anything need to be removed?

 

which side left or right? Either way it does require some degree of skill and patience but dooable. Mucho stuff has to be removed. I think once you do it and get the old one out I would recommend the NAPA replacement freeze plug with a expander nut built into it-goes in one hell of alot easier than the factory one due mostly to the fact that you will have VERY limited space the hammer the GM one(or equivalent) in. Good luck. JP

 

While I'm in there i am going to do both right away but its the one on the left side.