would the heater core from a 1989 s10 fit in a 99 silverado?

you do realize how long it takes to remove a heater core from an s10 right.some of the newer models you just cut the ac/heat case under the hood,and monkey poop them back together according to my book.the older ones the complete dash must be removed.what did you save?

come on ace you want to rip out another OLD heater core? and stick it in so it can fail? those are cheap buy a new one stop screwing around and being too cheap for words. same with the fuel pump and no an s10 fuel pump is not going to work in a full size truck and once again an old nasty rusty fuel pump? gonna just slap it in? think about what you are doing. fenders or doors or steering wheels are one thing. 4 hours labor to pull a bad heater core then put it in your truck with 5 hours labor does not make a whole lot of sense does it? work smarter man not harder.

that job will take you less than a 1/2 hour to do very easy ....buy new one $28.00

why not just buy new parts? thats A LOT of work to put used parts in! a heater core from autozone should be like 30 bucks