I found one great video how to change your springs on YT.
But, I have some remarks:
1. He forgot to change the rubber protection hose from the old to the new spring
2. Did he mention to rise the rear axle to the mark at the shock he made before when torquing the bolts?
3. Panhard bar adjustment, I think you can do this only on perfectly flat and horizontal ground with someone sitting in the driver seat. But this is controversial.
But, I have some remarks:
1. He forgot to change the rubber protection hose from the old to the new spring
2. Did he mention to rise the rear axle to the mark at the shock he made before when torquing the bolts?
3. Panhard bar adjustment, I think you can do this only on perfectly flat and horizontal ground with someone sitting in the driver seat. But this is controversial.