Parts required:
1. SLS to Coil conversion kit (this can be purchased from several different vendors such as Atlantic British)

 or
2. Source out these parts and use your own springs;
    - Rear Spring Isolator
    - Rear Lower Coil Spring Seat

1. Ensure vehicle is in park and that the park brake up. Raise whichever side of the axle you wish by using the radius arm as the jack point.

2. Use the jack stand to rest chassis at the location shown.

3. Disconnect the speed sensor cable or if you have had the ABS sensor wire recall done (meaning you have your wire connected to the SLABS ECU) like below, you can just crawl underneath the rig and make the cable longer by giving it more slack cutting off the zip ties that secure it. (Make sure to re-zip tie them after.

4. Remove brake caliper using a 12mm wrench and collect two brake pads. Careful where you rest the caliper. My jack was tall enough to let the caliper rest on the jack without putting stress on the brake line.

Now it should look like this

5. Using a 13mm wrench, remove the bump stop.

6. Position a 4 ton bottle jack or your standard LR vehicle jack between the chassis and axle. This will allow you to gain the required clearance needed to insert the spring without needing a spring compressor.

7. Now get ready to remove the airbag. Locate the two retaining clips on the top.

Left retaining clip

Right retaining clip

Remove the retaining clips.

8. Now to remove the air line you have two options. One is to remove the line before removing the bag, or option two, do it after you remove the bag. I think doing it after is easier but I did it before. I'll show you what I'm talking about in the next few steps. Third option is to cut the line so it depends what you want to do.

So using a small wrench loosen the nut. Then if you have small fingers continue removing the nut and disconnect.

Nothing happened when the line was removed. I was expecting pressured air from the line or bag to escape.

9. Pull the bag down and out of the top perch.

10. Turn the bag 90 degrees clockwise and pull out from the lower axle seat.

11. Remove height sensor.

12. Locate the two holes for the spring seat retaining bolts.

Grab your 10mm x 1.50 Tap

13. Run the 10mm X 1.50 tap through these holes to ease installation of retaining bolts. I didn't have the tap handle so I used a 1/4, 12 pt socket and my 3/8 drive.

14. Make sure you have the tap straight up and down. Use oil to lube the tap. Working very slowly, start rotating the tap until you will feel it start cutting. Continue turning slowly and putting drops of oil. Once it has gone through, reverse it out.

15. Install the spring seat.

16. Remove the top bolt of the shock absorber to allow axle to be lowered further. If installing new shocks, then remove completely. This rig had new Bilstein shocks.

It should look like this

17. Grab your spring and the upper spring isolator. Make sure the direction of the spring is correct. The tighter coils need to be at the top.

18. Using the bottle jack, lower the axle until the spring fits under the upper spring seat.

19. Now you need to ensure the spring and isolator are positioned correctly under the top spring perch.

20. Correctly installed.

21. Release pressure from jack to allow installation of top shock absorber bolt.

22. Refit bump stop

23. Refit brake caliper.

24. Refit wheel.

25. Repeat steps # 1 through # 24 for opposite side.

26. Reprogram slabs computer to coil springs using Autologic or Test Book diagnostic system (this will disable the air suspension system.)

27. Take out for a test drive.

If you can't make a trip to a dealer or shop, remove the SLS related relays and fuses. The SLS warning light will remain until it gets reprogrammed.

Enjoy...