Change heater core 87 wrangler, 6 cyl, no air?
Should be in the same place, Make sure the hot water valve is closed, remove the hoses (Delivery %26amp; Return lines) on the engine side of the fire wall, should 4 to 6 bolts holding the core, be careful no to invert it! it will still be full of water. Maneul will help.
Change heater core 87 wrangler, 6 cyl, no air?
get a repair manual