[FC] Corvan rear heat

[RAMPEYBOY at aol.com]

Guys my 62 Corvan came with no provision for rear  seats, and no rear heat 
vent. I assume the rear vent is supposed to be in the  vertical bulkhead of 
the " kick up" at the third seat position. Mine is solid.  Upon inspecting 
the heater box area above the transaxle, I see the fiberglass  box appears to 
butt against the vertical bulkhead, and has a spongy rubber like  gasket 
there. Could getting rear heat be as simple as cutting a hole in the  
bulkhead, and putting a vent over the opening? Why would there be a rubber  gasket 
there if the end of the box wasn't open? I plan to remove all of this  
equipment to clean out the vents, and get the heater flaps working smoothly.  That 
will answer the question for certain, in the meantime any info ya'll can  
give will boost my excitement about getting rear heat! Thanks in advance!
 
Boyce