These gears are the last generation ones, and they do whine under heavy load but not too loud. What you get is 4.10 Leader Gears INSTALLED in a diff, and the output shafts are brand new and I had them cryo treated at CRYOSCIENCE.COM. By purchasing this Diff, you will obtain your stock diff with stock gear ratio, you wont have any down time and youll get a set of brand new output shafts that are cryo treated, which means they are 30-40% stronger also you will be one happy individual. The cost for me was as follows $695 Gears $240 Installation $380 For Output Shafts from Courtesyparts.com $50 Cryo Treatment Which comes out to $1365, my loss is your gain so make me an reasonable offer. I prefer CA resident because of shipping factor, Thanks for looking.
Follow Ups
4.10 Gears installed in diff with brand new out put shafts - Eishozzzz05:49:19 03/02/07