[75 911s]

Short answer is yes. When the tension is off the spring plate, it's resting position is below that bolt, so instead of it being under tension against that bolt, the idea is that you move it out of the way for reindexing the rear torsion bars.

Now, is your real question is how do I lower the rear of the car?

There are two ways:

Minor adjustment (with the two bolts close to the torsion bar on the spring plate.

Re-indexing the spring plate to the torsion bar for a major adjustment.

If you can't get it low/high enough using the two adjustment bolts forward on the spring plate, (or you have an early car with no adjustment bolts) then you will need to re-index.

Put the rear of the car on jack stands on the torsion bar tube just inside the 'frame'. Use a jack to lift the banana arm up slightly to take the tension off. Remove the rear shock lower bolt.

Remove that bolt circled in red. Move the jack to support the edge of the spring plate about where the lower control arm bolt is, take out the camber and toe bolts (you already have them marked)

remove the control arm bolts, let the jack down carefully to let the spring plate move to its unloaded position (it will hang below that bolt circled in red)

Now take off the other 3 bolts on the cover, and you can pull the torsion bars out.

Inner splines are minutes, outer are seconds if I remember correctly. The T-bars are directional and marked on the end with a L or R.

Your alignment will likely be upset.

I would install new spring plate bushings. The elephant rubber bushings are great.