Hi Fattymick,
                   Shad have a fitting base kit for the GTR 1400 which is a metal plate which sandwiches the original plastic rack to the support mounting brackets using spacers and longer mounting bolts.This takes all the pressure off the origonal plastic rack,by bolting the Shad via the Shad mounting plate directly to the side mount brackets.
But I would be interested in the reason for your suggestion.
Regards smokin.