it bolts in , yes.
twice though, I have had the seat back attachment 'posts ' on the side walls
not be in really the right place for  the Z bed seat back.
There may be two threaded holes in the body to accommodate that.

you need to install the Z bed outboard set belts too....they're different.
Scott
turbovans
----- Original Message -----
From: <JordanVw@AOL.COM>
To: <vanagon@GERRY.VANAGON.COM>
Sent: Saturday, October 08, 2011 8:57 PM
Subject: Re: '87 rear seat into an '85?

> In a message dated 10/8/2011 9:18:14 P.M. Eastern Daylight Time,
> phishman068@GMAIL.COM writes:
>
> Is it  possible to mount the 7 passanger bed that folds down from my '87
> into
> my  '85?
>
>
>
> yep.. bolt in deal