Well a little more information is needed for a clear answer. What size lift are you running? What type of wheeling do you do (if any)? For a small lift like around 3", and mild to no wheeling, upgraded lowers and stock uppers are okay, but you have to take into consideration that your stock upper control arm bushings are now 18 years old and may also need replacing. If that were the case, I would consider replacement upper arms.