Hey Ficklelife,
Not sure why you want to muck about with the springs.
But if you do want to go ahead.
If you’re not very mechanically experienced, don’t attempt!
1. Lift and support the rear of the car on the frame rails with car jacks.
2. Loosen the U bolts and lower axle with a floor jack about 1” and support with car jacks.
3. Use “big” G Clamps on either side of that spring, tight!
4. Don’t remove the factory fitted clamps.
5. Fit another “big” G clamp and hold the helper spring tight.
6. Loosen, but do not remove the spring Location bolt to Axle spring saddle. 3/8”unf?
7. Loosen and remove “big” G Clamp on the helper spring and remove the helper spring.
8. Refit the nut on the 3/8” unf bolt, and relocate into Axle Spring saddle, you’ll need to watch the extra depth of that bolt in the saddle.
9. Put back together.
10. Get a wheel alignment, mentioning you have played about with the rear axle.
https://images.app.goo.gl/ZwJGafe6eHWBFddu6Cheers Phil.