I have actually never owned a vehicle with a locking differential unless you count a gov-loc which doesn't work all that well anyway so I'm new to the locker world. I just bought a Lock-Right for my new daily driver rig, a 2000 Ford Ranger 4x4. I hope it's not going to drive me nuts. I doubt it will once I get used to it, which shouldn't take long. Yeah I know it sucks that I bought a Ford. Couldn't find any S10 4x4s with 5 speeds which is a must-have. Too bad too, I would have rather had one. Either way the Ranger gets an honest to God 23 MPG so I'm not complaining. That was including some Chicago traffic in that tank too, I bet I can do better on the highway. This truck is going to be a test dummy. If I like this Lock-Right I'm putting one in the front of my big truck. So, anyway, how do you like your lunchbox locker? I payed $300 for mine shipped to the door.