Whats the difference in rear shocks from a 00-06 1500 to a 07-12? Length OR?

Hi guys. Im curious whats the difference in rear shocks from a 00-06 to a 07-12  1500 av? They share the same eye dimensions but is the length the main difference? If so by how much? Thanks in advance!

I have never compared side by side the two generations of shocks but you may want to contact the shock manufacturer so you can compare apples to apples.
Remember that you not only have differences between generations but you can have differences within a model depending on 2wd vs. 4wd, stock shock vs. Z71 premium off road, Z66 on road smooth ride, and LTZ self leveling shocks........