Heater Core Tips

[CUDA JAS]

I have to replace a leaky heater core.

Any tips or tricks?

Is it easier to pull to whole heater box out, or just pull it apart in the car.

I recently had the box out for some major repairs and a rebuild, so it should come out easy enough (obviosuly I should have also replaced the heater core at that time  )

Jas

[NoMope Greg]

I don't think you could pull the heater core out without pulling the whole box.  After all, you have to open the box just to get at the core. 

[Chryco Psycho]

I agree , just drop the whole box down & replace the core

[Bullitt-]

Very easy to remove the whole box.... I did a Duster in the car once..WRONG approach.
  Be aware of the little hook in the passenger side vent that catches on the cowl. 

[RT Dude]

Is there anyone who sells a seal kit for the non A/C heater boxes on a Challenger ?

[Bullitt-]

Is there anyone who sells a seal kit for the non A/C heater boxes on a Challenger ?

Yep
http://shop.detroitmuscletechnologies.com/category.sc?categoryId=51