At a local audi get together I was talking with a guy that rallies a 5000cstq he said that he just locks the center differential! Now I do not remember his name ... I am bad with names... But mark Nelson co-drove for him at the olypia rally...Anyway... he sad that he reversed acouple of vacume hoses.... has anybody elso done this??? Thanks Joe> its 1:00 am Im going to bed!!!