Regular/OEM pumpkins come with 30 spline carriers. You'll need a 35 spline spool to make the axles fit. I haven't heard of anyone making a 35 spline Sure-Grip, but that doesn't mean someone doesn't.
You can take the sure grip posi off a dana 60 35 spline. Remove the side gears and put them in a 8 3/4. May after to machine the od of the side gear a little not sure. Or have the side gears broached to 35 spline.
You can take the sure grip posi off a dana 60 35 spline. Remove the side gears and put them in a 8 3/4. May after to machine the od of the side gear a little not sure. Or have the side gears broached to 35 spline.