Not sure what "open type" means. People have changed to a standard U-joint at the tranny. There is a splined adapter that bolts to the output shaft of your tranny and accepts a U-joint. I think it is from trucks. The seller gave me one when I bought a cable-shift 727 tranny (for Detroit ball & trunnion). You then need to customize the driveshaft by adding a sliding component. A good driveshaft shop can do that. I haven't done so, but you can find posts w/ photos and PN's on FABO to do that mod.
Last edited by BillGrissom; 06-17-2012 at 04:26 PM.