Not nice to pick on the professor......Wavetrac is the only thing out there that is a true limited slip... I have been a Jeep nut my whole life as well...we aren't even close to talkin' apples to apples here... "locker's" have been around since the '50's, maybe longer...lol...but, a locker will eat tires as there isn't any "slip" as in "limited slip". As you turn the other tire is digging in, always... Drag racers use them, but, they go straight all the time... Anyway, wavetrac is the only real one out there for our cars. This only come about recently. The other product mention by the professor worked like a limited slip, but I wouldn't call it a true limited slip answer to the open diff problem we had with these cars. There is plenty of reading about it on here...good luck with your choice.