Was going to go this route and probably still will when I get around to it, I even made a thread asking about it. But for now I'm going on 2000 miles with the axles always coupled together, sort of like with washers. I don't mind it this way doesn't seem to any different, except it always works and never breaks, maybe a tad less mpg but I can't even say that for sure since my 4 banger has always got crap gas mileage.
1991 Jeep Wrangler 2.5L, 5 speed
2003 SVT Cobra Supercharged 32V 4.6L, 6 speed