Ive got one out back in my 10 bolt. Thats right, i run a locked 10b with a 36" tall TSL, and while i fully expect to break it many times, i havent yet.
Its a good cheap locker, it works well, its dirt simple to install, and once again, its cheap.
Road manners are good, its makes some ratcheting sounds arround curves, and will bark tires if you are on it through a turn, but i have no complaints about it on the road. No issues in snow either, handles and drives better for me than it did while open.
As for installation, theres a brief little blurb in my webshots about it, took at tops an hour, after doing it i could proobobally do a rear in under 45 min no problem. Like i said earlier, dirt simple to install.