Roughly two months ago I installed a Lock Right locker. It was by far the best investment I've put into my 02 F150 with an 8.8 rear end. I can barely make out the ratcheting that comes with the turning and it didn't take that long to figure out how to turn with the truck. Really helped a lot in the off highway traction. Even dumping the clutch on the asphalt, the truck really gets up now from a stop.

Installing it wasn't hard at all. Once I had the diff cover off, I removed the pinion shaft (I also had to remove the calipers due to disk brakes in the rear). After sliding that out, I pushed the axle shafts in and removed the C-clips, then all of the spiders, and then pushed the axle shafts out of the carrier. The lunch box went right in. First was the left side driver and coupler. The right was a little difficult because the C-clip had to be sandwiched between the driver and coupler with the help of a little piece of bent wire. After all of that was together was the springs, which only gave me a little trouble. After the four springs were installed in the drivers, the pinion shaft went back in and got retorqued. The diff cover went back on next with everything getting retorqued. While waiting for the form-a-gasket to set I put the calipers and wheels back on, set the truck on the ground, filled up the diff with gear oil.

The entire thing only took me an hour and a half. But had I read the instructions a little more thoroughly before I started, I would have not had to reread as much. This applies to pretty much all of the lunch box lockers. They really are a great investment.

 

agreed. I have one in my 83 f150 9 in. and its Incredible. i have the older version which clicks a little louder than the new ones apparently but its still really only noticeable in parking lots and at low speeds. Even then, anybody who is going to notice it, is going to know what it is and is gonna your truck more for it.

 

Mine is the older one too. The Powertrax is the one that doesn't make any noise at all.