Am I missing some info ......as I can't get the wheel off, as the wheelbrace just spins on the nuts when you put any pressure on it it also doesn't seem to fit all the way on to the nuts .i have tried different sockets Nono avail they seem to be covered in a chrome cap . S type 2006 2.7 deisel 

Should be a 19mm socket. 

 

Post a a pic if you can. 

Just a thought but you dont have plastic chrome covers over the nuts do you?