Originally Posted by hudsonhawk
If it is a true locking diff then you will get some tire scrub/binding while turning on pavement. You don't want to have it engaged on pavement. Off-road the surface is normally slippery enough that you will not have any problems with the locker engaged.
On the TH you can only engage the locker in low range. You can not do it in high range. So in normal driving the rear locker is not engaged and I believe it acts like a limited slip.
True up until the end, when unlocked it is a open differential. I would definitely not be engaging it on dry pavement, that's how stuff breaks.
It will effect your turning radius, but not near as much as a front locker does.