Jimmy II
Fair weather only
I also used the slightly thinner 124 heater core to replace my X19 core ( 6MM thinner is approx 1/4 inch). I couldn’t see well enough to remove the cable to the floor vent without breaking something, so I did the core replacement with the lower box connected to the cable behind the center console. I did not find a need to make further mods to the assembly.
I did find it easier the glue the core to the free -floating plastic flange normally below it, then I used painter’s tape to secure the flange/core combo to the upper box. This made it easier the position and clip the lower box to the upper box (fewer things to manually align). Then I removed the excess visible tape.
I used pieces of 2x4 wood and 3/4 plywood to support the lower box while I re-installed the clips.
There may well be a better approach, but I hope these comments make it easier for someone else. It is one of numerous changes I’m doing at once, so it will be awhile before I can put real miles on this fix, but it looks promising.
Everything under the dash is PITA, but if I can do it, you can do it.
I did find it easier the glue the core to the free -floating plastic flange normally below it, then I used painter’s tape to secure the flange/core combo to the upper box. This made it easier the position and clip the lower box to the upper box (fewer things to manually align). Then I removed the excess visible tape.
I used pieces of 2x4 wood and 3/4 plywood to support the lower box while I re-installed the clips.
There may well be a better approach, but I hope these comments make it easier for someone else. It is one of numerous changes I’m doing at once, so it will be awhile before I can put real miles on this fix, but it looks promising.
Everything under the dash is PITA, but if I can do it, you can do it.