Rear suspension question

[grschell]

I just replaced my factory rear coil spring on the 70 GMC. I decided to go with Touring Tech 4” lowering springs. I also installed shock relocators. After I finished, the drivers side was 1/2” lower than the passenger side. So, I swapped the springs thinking that one spring was a bit softer. Ended up with the same 1/2” difference. So, maybe a bent trailing arm. I was thinking about putting a 1/2” plate between the spring and the frame. Has anyone done this? Or, maybe go with a 1/2” drop block on the pass side?

Also, I was thinking about going with a coil over shock to help with ride height. Is there a good kit to use that is not pricey? QA1s would be ideal, but they cost a pretty penny. Thoughts? Suggestions? Thanks!
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