Seems like some are better than others. Mine just went "poof" and stripped all the teeth off after a couple dozen trips at most (don't recall exactly). And it never had a broke shaft or hard shock load At that point, I would have been better off with an open front since it was not pulling from either side, just like a 2WD. And I carefully set mine up to the indicated tollerances, slightly on the tight side, but well in the range. Several others have suffered broken lockrites as well. But then again, a budy of mine has wheeled his F250 on 42" TSLs for years and had no problems. But I'll never recommend one again... In fact, based on other failures, I would actively recommend agains anything larger than 37" tires or on anything that is used hard. Just not worth the trouble. Cost of that one ruined trip could easily have offset the extra cost of a Detroit and setup.
