After seeing the links and pics, I made myself one today in about an hour.
I used some MSD plastic (like very hard nylon or teflon) stuff I had
around. Also an old seat belt eye-bolt.  I think mine may even work while
driving if the exhaust doesn't eddy around and come inside.
  Mine looks a bit like the Go Westy $20+  one, with a flat strut that hooks
around the post on the body and that seat belt eye bolt sticking up to catch
the latch on the hatch.  I can close the hatch with one hand without bending
over.  I think my dog is going to love me (even more) this summer.
  Don Hanson

On Tue, Apr 14, 2009 at 7:11 PM, Bob Stevens <mtbiker62@gmail.com> wrote:

> One end is bent at an angle and that hooks around the
> > existing striker. The other end is bent at a right-angle and it
> replicates the
> > striker, so the latch on the hatch now attaches to that and when locked,
> it cannot be
> > removed.
> > Jerry
>
> ..... Nice description Jerry. And boy oh boy is it nice to have that
> air flow when it's needed ...... especially with a rear screen ....
> and side slider screen. Really cools down the inside of the van.
>
> bob
>