I will agree with you on the spacers. Mechanically it makes sense and it's not too late for me to remove them. As far as the arms themselves, the stock were shot. Had huge wheel movement and since I was going to replace them anyway, thought I would uprgrade to something with adjustability. I always like to be able to "tweek" something if necessary. Is anyone saying the Powertrix arms are an inferior product and shouldn't be used?