I believe the mounts are totally different between the two styles. It may be you could procure everything, mounting rails and all and make it work, but there were frame changes over the years and the mounting points needed may not be available on your bike. There may yet be a Triumph accessory floorboard kit for your bike; the mix of accessories often changes but it's worth a look. Alternatively Kurakyn may have a splined adapter that would let you use one of their boards if there's any that you like.