Installed a 1.5" AAL while waiting for my leaf packs to get here in order to compensate for having my new camper and a couple of other goodies in the back.
Now, when cruising at a steady 25mph there is an odd shudder through the whole truck and low rumble that matches the intensity and speed of the movement.
The ride/noise goes away as soon as you get over 30 and it doesn't track during high or low speed driving or braking.
There is very slightly increased steering input (might be me just being a hypochondriac, this is more than likely).
When installing the AAL I did have to leave one wheel/leaf pack attached so when raising the axle back up I did have to tweak the axle a little in order to get the alignment pin to line up correctly (about 1/2- 3/4" forward on both sides)
As I purchased the truck 4 months ago I couldn't tell you when the last alignment was done. Could this be the culprit and adding a leaf just compounded the problem?
Any input is greatly appreciated.