I am going to moch it up this weekend. I will post pics after that. Just go down to your local Checker or Advanced Automotive shop and ask them for a Heater core from a mid 90's Bronco. Mine measures about 10inches high, 2inches deep, by 5 inches wide. I don't have any of my shees here to play around with frame placement, but should be pretty simple. I will put pics up soon as I am done putting it together and testing it.