Well i finaly had a chance to test my new front lunchbox locker. The problem is that it works fine going forward but in reverse it slips under load, and when i say slip i mean it makes a lot of noise. The driveshaft spins and the tires don't. You can hear it trying to engage and it will when the rpm's come down a bit but its loud. Any ideas?... I was thinking about just shimming it out some more but i'm not sure if that will work. It's a genuine gear locker.