Things to keep in mind:
The trailing arm has a 100% preset sweeping motion. Disregarding normal bushing deflection, the trailing arm will always move up and down along the same axis. The spring and shock are the only things that resist this movement. The spring is the only thing that will impact static ride height (the shock simply impacts how fast the spring compresses/rebounds while driving). This trailing arm motion is also not straight up and down, due to it's subframe mounting locations. As it moves up and down, the camber and toe are also impacted. What this means, is that if the ride height is different side-to-side, so will the camber and toe (assuming you have 100% straight/equivalent trailing arms). The side that is 'lower', would have more negative camber. That said, with alignment results, we can likely still get a pretty good idea of what's going on. If the camber and toe are both in the expected range for the given ride heights, you likely aren't looking at a trailing arm issue. If it's bent enough to cause that much of a ride height difference, 99.9% chance it would noticeably impact camber/toe too.
It may be helpful to take that spring spacer with you, and also get results with that installed to level the car, in addition to without (if the shop is willing).
Assuming you don't have bent trailing arms, you have checked that you have new, *equal sized* spring pads, top and bottom, on both sides?
Are you on 100% level ground? You'd be surprised the minimal amount of slope that can impact static ride height. Simple test would be to just turn the car around in that spot and re-measure.
The trailing arm has a 100% preset sweeping motion. Disregarding normal bushing deflection, the trailing arm will always move up and down along the same axis. The spring and shock are the only things that resist this movement. The spring is the only thing that will impact static ride height (the shock simply impacts how fast the spring compresses/rebounds while driving). This trailing arm motion is also not straight up and down, due to it's subframe mounting locations. As it moves up and down, the camber and toe are also impacted. What this means, is that if the ride height is different side-to-side, so will the camber and toe (assuming you have 100% straight/equivalent trailing arms). The side that is 'lower', would have more negative camber. That said, with alignment results, we can likely still get a pretty good idea of what's going on. If the camber and toe are both in the expected range for the given ride heights, you likely aren't looking at a trailing arm issue. If it's bent enough to cause that much of a ride height difference, 99.9% chance it would noticeably impact camber/toe too.
It may be helpful to take that spring spacer with you, and also get results with that installed to level the car, in addition to without (if the shop is willing).
Assuming you don't have bent trailing arms, you have checked that you have new, *equal sized* spring pads, top and bottom, on both sides?
Are you on 100% level ground? You'd be surprised the minimal amount of slope that can impact static ride height. Simple test would be to just turn the car around in that spot and re-measure.
Comment