I drove a welded diff for a few months, and it was not bad, but you can just feel it putting strain on your entire rear end. its not good for your car, but it is a great way to save 800+$ . i decided to get a kaaz 2 way, and i'm loving it. it breaks loose when i want it to, and it allows me to park my car easily. it does make all kinds of noises, but its not that bad.

and a welded diff is not as dangerous as people make it out to be. its good for a cheap fix, but its not the right way to do things.

oh and whats wrong with using a 2 way for dd?