Detroit Muscle Technologies, LLC.

We ARE the manufacturer! Detroit Muscle Technologies reverse engineered, laser cut foams and seals required to restore the deteriorated foams in the A/C heater box of your 66-70 B body - Charger, Coronet, Road Runner, GTX, Satellite, Super Bee
 
58+pcs are included in the kit. All internal insulations, door foam, caulk, etc. Basic instructions and pictures are included. 
 
Most heater boxes can be disassembled, cleaned, foams installed and reassembled in an afternoon (this A/C box might take a weekend).
 
I usually sand (or glass bead) blast the metal "doors" and all brackets. Wash the housing in hot soapy water with a  scrub brush to clean out 30 years of movie tickets and leaves. Spray all the metal doors and brackets with a "metal look" quality paint (like Rustoleum Titanium). Then apply high temp spray adhesive to both the door and the foam. Wait for the adhesive to "set up" for a couple minutes and then apply the foams to the doors. Assemble in reverse order and install your heater box and save yourself $995+ having it done!
 

Shipped in a large/long cardboard box so the parts aren't bent and to protect the fragile styrofoam pieces.