I have manual locking hubs on mine and like the fact that my 4 wheel drive seems to work MUCH better in reverse now, before the fronts would not spin in a tough situation now they seem to always work. I thought we had autolocking hubs that would only lock when going forward, thats why I switched. Also to help save my CV's.

When I was racing at the track I had a switch to disengage the TOD, I would unlock the hubs, and at one point I even dropped the front driveshaft to try to get as much power to the rears as possible. I believe this helped but I don't think the gain was really worth it. Maybe -0.2 seconds in a quarter mile. But it was cool to be able to light the rear M/T tires up before I got to the line.