J.C. Whitney offers two very reasonably priced trunks,
the one that I have is pictured above.
One That I Have
would have been able to use only two existing holes for the
mounting plate, and that would have put the trunk in a position
that was too far forward for my wife to ride comfortably with
me, and would *probably* have been too far forward for me and
my waterproof duffel that I net on the back of the seat up against
didn't like the bolts that came with the trunk, and couldn't
get them to sit low enough to not interfere with easy removal
and installation of the trunk onto the mounting plate. I got
funnel-headed stainless bolts from a hardware store as a substitute.
They nicely sit down into the plate.
positioned the mounting plate just far enough back so that I
could still use the stock tool kit box.
pictures should show how I placed the bolts, and that I just
cut off the bolt ends to the right length so they'd fit between
the rack bottom and the fender top. I used a countersinking
router bit in my drill to make sure the bolts sat as flush as
possible - that probably wasn't necessary.