I merged this with your last thread on the same topic, if the subject hasn't changed you can keep posting in the same thread. The '03-'07's are all the same, there are 5 models, the K3;K4;K5;K6;and K7. The K3 and K4 have a different frame and used both subframes, some had the permanent grab bar, and some used the one with the removable grab bar. The K5, K6 and K7 use a slightly different frame and only had the option of the removable grab bar. In '08 and '09 there is only one model and they all use a subframe with a removable grab bar. I would think that any subframe from '03-'07 would work, but since the frame #'s are different, the only way to be sure is to get the one off of a K3 or K4 model with the removable grab bar.
Yours truly, sincerelly, love always, Josh aka The DirtDemon.