My LHS didnt have the complete sets for sale, so I just grabbed the knuckles, and got the bearings seperate. They were out of stock with the pivot ball caps, so I am useing the stock plastic ones for now. Ive got a few runs of 4s and 6s in and they havent backed out at all :)
And the wheels and tires are pretty good, too bad the nubs are just about worn down