Chevrolet Repair: 88 S10 pickup, crappy job, s10 pickup

Question
I need to change out the heater core on my '88 S10 p/u, I've pulled maybe 25 screws, 5 or 6 interior parts, and I still can't even SEE yhe core, much less reach it.  Can you help me remove old heater core ?

Answer
Hi Art....you will need to remove all the outer screws that hold the heater box to the firewall, there could be a couple that are on the firewall side. See if you can get a diagram from your local dealer or parts store....it is a crappy job to do...it will come out it will just seem like you need 4 arms to do it....hope this helps...