You should concentrate on the diameter and width of the proposed tire
rather than just the wheel diameter.
  The winch idea sounds interesting.  Might need some fabrication to
make a sturdy point to mount the winch tho.

Larry A.

On Sat, Aug 11, 2012 at 12:10 PM, Harry Hoffman
<hhoffman@ip-solutions.net> wrote:
> Hi All,
> So I'm planning a move to 17" wheels. I'd like to carry a full spare, but
> from reading the archives realize that it won't fit in the holder.
> Has anyone modified that area to adopt a truck/SUV model where I
> winch/pulley raises and lowers the spare?
>
> Cheers,
> Harry