Ok. There is NO DIFFERENCE between the rear bumper brackets or their
mounting points, 2wd or 4wd. I move my hitch equipped bumpers between
vans of both types, just by removing the big bolts that hold the mounts
to the inner frame rails of the vans.

I don't care very much for the tow loop mounted hitches but they work
fine and the loops are stout enough in practice. The only loop failures
I have heard of were from people who mounted cargo trays or bike racks
on hitches that attached only to the loops. Over a long period of time
it seems the bouncing loads can fatigue the loops. Many people have done
that with no issue but occasionally there is an issue.

Mark

Tom Buese wrote:
> Thanks for all the responses, but I still don't know if there is any
> structural difference to the rear bumper or bracket mounting points in the
> syncro vs. 2 WD models.  My syncro bumper has a notch out in the bottom of
> the bumper where a hitch might have been installed at 1 time, & this is
> similar to the notch in my 2 WD bumper for the OEM ?