Buying stock shafts for spares sounds good to me. I wheeled the heck out of it when I bought it, because I didnt know anything about dana 35s. I towed trailers weighing over 1000 pounds,drove it on some rocky roads for miles to the middle of nowhere,taken it through creeks, even ran the locker in deep snow but havent broke the shafts yet. I know they can break, so I stay off the skinny pedal. So a spare set of stock shafts should do me good.