We have some Quadco XR 18-spline and 25-spline output shafts for sale. These are the same shafts that Maximal was offering for us in the group buy a few months back. And as far as I know, noone has broken one of these yet! Price is $499 shipped (within the US). We only have a few of each type, and it may be some time before we (or Maximal) run a group buy again. So get em while we got em!