? about getting a vehicle to sit level.

[BigTruckDriver]

I am going to take my truck to get aligned but have a small issue. It seems like the rear is lower on one side. I am thinking I will pull the shocks and see if this makes a difference, I will also measure the length . I am also going to set up my laser level and shim underneath the each tire to make sure all 4 corners on perfectly level. Then I will use the laser level and measure different points on the frame and see what I come up with.Now after removing the shocks (1 could be bad) if I still have this issue could I loosen up the leaf bolts and raise that side up some the retighten? Front springs are new ,back leafs are not but I have added helper leafs to both but I had this problem before. I have within the past year done a lot of suspension work on the truck .Should I loosen all the bushing bolts on each tire and see what I get? When I did install new bushings I did let it sit on its own weight and then tightened. I know I through a few different questions out there but any help will be appreciated. Thanks How would you guys go about it?

[BigTruckDriver]

oh ya, they are adjustable air shocks.

[R Pope]

Gas shocks can cause a tilt if the gas pressure goes away in one.

[shawnlee28]

If its the rear passenger side ,its probably the springs......heavy on the go pedal causes that too!!!