I've been battling with my transfer case lately. I rebuilt it with new forks, and pads. Everything else looks fine. Replaced hubs and had a new driveshaft made. I can't get it into 4lo because it grinds. Linkage is perfect, been adjusted back and forth. The truck will go into 4wd even if i'm in 2hi just by locking the hubs. The front driveshaft always spins and makes a loud whining noise. Is it supposed to turn? Also there is a small spring that goes inside the case. Does it go between the forks on the rod or on the outside of both of the forks next to the case? Trying to go wheeling this weekend and need to figure this thing out.