my aal came with the lift kit... so yes I saw 6" of added lift. This is the first time I have loaded the truck up and wanted to show people how it holds up. I looked before lifting my truck, and couldnt find anything like this. I guess I should mention that prior to the aal, I had 5 leafs back there and now I have 6. I have seen 2500's with less and the wifes c1500 has way less. It may be that a previous owner added a few or it may be that my truck came with the heavy duty package. Idk.
The aal was pretty easy. Drop the rear diff, remove center pin, undo the holders that wrap around the spring pack, then add the leaf and put it all back together.