It will help just replacing the 3rd member with a GV or XL-7 unit. But you will still be stuck with the weak right side half shaft. Many people have trouble with trashing the mount on the Alum. 3rd and the GV/XL-7 replacement would correct this weak point. I'm almost posative that there are frame differences in the GV's and the Kick/Tracker that would not allow you to switch the entire front unit without custom fabricating the mounts.
HTH,
Zig