I have a Isuzu D44. Removed thick gears and installed standard 4.88's with standard 3.92 and up carrier. Put an EZ-locker in that had known problem, but he thought the housing was bent. Put it in my axle and did same thing. It unloaded going straight down the road. Talked to Tractech in length, shimmed it, no good. Bought a BRAND NEW EZ-locker. installed it. Driver side disengaged real easy, but passenger was real hard. In fact couldn't get it to do it with the tire test, but thought my wife was holding the other wheel wrong. Bolted it up. Left the driveway, heard some unloading pops. Went very slow, when I gave it some gas to get across the street. It just spun in place and made quite a racket. Had to take off my rear shaft and put it on the front just to get it back in the garage. (I had my front off). There she sits. #$$%^$^#^$#$$$#%#$%&$#&#$#$^&#%^&&&%%^ This will be the 4th time I've had it apart. WHAT THE F%& IS WRONG???