Not in a daily driver, I have never run one in mine, especially won't after runnin with a friend that had one in his for awhile. It pops, engauges, dissengauges and just does all sorts of weird stuff driving down the road.
Going absolutely straight didn't ever seem to be an issue, but even on the highways wherever there was a curve of any kind, it would always bang and jerk the truck around on him.
I have one in ther front diff, and other than going with an air activated system, this is the best thing I have run so far that is sort of selectable, meaning I lock the hubs, but keep the transfer case in 2wd until i absolutely need it, so I can steer easier, otherwise as long as torque is applied to the driveshaft fromthe motor, it locks in.
I of course still have the factory steering, which is a main reasin for the need to select in and out of 4wd.
I had the front completely locked once, ran a Gov-loc as a trial thing for a bit, neither was working like i wanted, the Loc-Rite is it so far.