Looks the same as the tunnel I had in my 82 westy diesel. Screws down to the floor and fits up under a slightly different heater cover. 

I suppose it could be adapted, but to be honest I don't think it works very well. In the doka it probably does supply enough warm air for the rear passengers, but in my westy it really didn't do much.

Installing a rear heater beats the duct hands down.

Alistair

> On Mar 26, 2015, at 11:45 AM, szpejankowski@gmail.com wrote:
> 
> Is it possible to adapt that center heater floor tunnel to a later model Vanagon?
> 
> Wysłane z iPhone'a
> 
> Dnia 25 mar 2015 o godz. 18:14 Alistair Bell <albell@SHAW.CA> napisał(a):
> 
>> Posted some bumpf about my neighbour's 85 doka. It's worth looking at just to see the nice colour choice he made with his repaint.
>> 
>> 
>> https://shufti.wordpress.com/2015/03/25/vanagon-85-doka/
>> 
>> Alistair