Ok I got the lock right locker in my dana 35. I also went with the USA Alloy 4140 27 spline axles. So far I drove it around town and it is not to bad. It clicks a little more then the front locker, or maybe the combo of the two of them is just louder. I wanted to start this tread to document how it does and how long it lasts because everyone seems to think it will break just pulling out of the driveway. I know there are probably a lot of guys out there that want to do the same but are afraid to do so. The first trip out with it will be on the 20th of Oct to a hard canyon with some nasty water falls. I had to winch up two of them last time out with no locker and just a rear trac lock. Now im locked front and rear. I will post how it does and if it breaks or not. Im running on 285/75-16's 3.73's and an auto.