Hi thank you for your question hope this helps.
1989-93 Pick-Up and Ramcharger
Heater Core REMOVAL & INSTALLATION
WITHOUT AIR CONDITIONING
WITH AIR CONDITIONING
Installation is the reverse of removal.
Hope this helps
Good luck
Auto Service Technician
Certified Master Technician,Certified in diesel & gasoline engines
Sorry did not see that you replied.
This job is it you have not done this sort of repar is around 4 hours.A repar shop will charde you for around 2 hours.
Sorry agine for the long to reply i been vary bizy
Thank you for the accept hope this helps