Ever since I had the 373 gear install I have missed the low end sound of the car. Additionally, I can't really tell the difference in acceleration which is probably my fault but maybe I also expected to see a much greater difference than is realistic. Additionally, I am getting noise (clattering) in the rear when turning in a tight circle in neutral. Well anyway, I am considering having the original 327s reinstalled with new installation kit. The original 327s only had only 16K on them and looked perfect when they came out. I know there had to be some "wear in" (not sure if that is correct term), but I am thinking they would be okay. Any thoughts on this.