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C-2835
ARNOTT COIL SPRING CONVERSION KIT
FOR 2007-2014
VARIOUS SHORT WHEELBASE GM SUVs
The air suspension system is under pressure (up to 10 bar, or 150 lbf/in). Verify pressure has been relieved and disconnect power to the air suspension system prior to disassembly. Do not allow dirt or grease to enter the system. Always wear standard hand, ear, and eye protection when servicing the air suspension system.
Reading this manual signifies your agreement to the terms of the general release, waiver of liability, and hold harmless agreement, the full text of which is available at
Not to be stored below 5°F (-15°C) or above 122°F (50°C).
Avoid damage to air lines and cables.
Removal and installation is only to be performed by fully qualified personnel.
Use car manufacturer’s diagnostic software.
Damage to the vehicle and air suspension system can be incurred if work is carried out in a manner other than specified
in the instructions or in a different sequence.
To avoid the possibility of short circuits while working with electric components consult your owner's manual on how to
disconnect your battery.
Consult your vehicle owner's manual, service manual, or car dealer for the correct jacking points on your vehicle and for
additional care, safety and maintenance instructions. Under no circumstances should any work be completed underneath
the vehicle if it is not adequately supported, as serious injuries and death can occur.
1. Raise vehicle and remove front wheels to expose the front coil struts. (FIGURES 1, 2)
2. Lift the hood to expose the top of the coil struts. Locate and disconnect the electrical connectors. Secure the harness in a way not to interfere with any moving parts or components with excessive heat. (FIGURES 3, 4)
3. Remove the wire clips and top mounting nuts. (FIGURES 5, 6, 7)
4. Remove the lower mounting bolts. (FIGURES 8, 9)
5. Loosen, do not remove, the sway bar end link hardware. (FIGURE 10)
6. Carefully remove coil struts from the vehicle. (FIGURE 11)
Use a spring compressor tool for the following removal steps.
1. Release clip and remove the top electrical connector and shock rod stem. (FIGURES 12, 13, 14 ,15)
2. Compress the coil spring and remove the top shock rod nut. (FIGURES 16, 17)
3. Remove top mount plate, offset plate and rubber isolator. (FIGURES 18, 19)
4. Carefully release spring pressure and remove the coil spring, spacer washer, bump stop, bump stop cap, and spring seat. (FIGURES 20, 21, 22)
Tighten all nuts and bolts to manufacturer's specifications during the installation process.
1. Install the OEM spring seat, making sure the flanged end of the spring seat is down, followed by the bump stop cap onto the new shock absorber. (FIGURE 23)
2. Properly align the strut before installing it on the vehicle, making sure the bolt mounts are facing downward as shown below. (FIGURES 24, 25)
3. Remaining assembly is in the reverse order of shock removal.
Tighten all nuts and bolts to manufacturer's specifications during the installation process.
1. Installation is in reverse order of shock removal.
2. Position the T-bar on top of the control arm to ensure proper mounting. (FIGURE 26)
REAR AIR SHOCK/COIL SPRING REMOVAL
1. Set steering to straight.
3. Remove the rear wheels. (FIGURE 27)
4. Locate and remove the air lines to deflate the air shocks. Turn the metal clip approximately 90° to remove the air line fitting from the air shock. (FIGURE 28)
5. Locate and remove the electrical connectors from the top of the air shocks. (FIGURE 29)
6. Loosen and remove the upper and lower shock mounting nuts. (FIGURES 30, 31)
7. Support the axle to relieve pressure from the air shocks mounting points. Remove the upper and lower air shock mounting bolts. (FIGURE 32)
8. Remove the air shocks from the vehicle. (FIGURE 33)
9. Remove the bolts and ride height sensors from the upper control arms. (FIGURES 34, 35)
10. Remove the bolt and bracket holding the brake line to the rear differential. (FIGURES 36, 37)
11. Remove the nuts on the upper sway bar end links. (FIGURE 38)
12. Using a jack or other suitable device, support the axle to release pressure from the sway bar end links. Remove the sway bar end link bolts. (FIGURES 39, 40)
13. Slowly lower the axle and remove the coil springs. (FIGURE 41)
REAR COIL SPRING INSTALLATION
Tighten all nuts and bolts to manufacturer's specifications during the installation process.
1. Install the rear coil conversion in the reverse order of removal.
Secure the air lines and electrical connectors in suitable locations as they are not used for this kit.
ELECTRONIC BYPASS MODULE INSTALLATION
1. Remove side fuse box cover. (FIGURE 42)
2. Remove lower dash hardware and remove lower dash cover. (FIGURES 43, 44, 45, 46, 47)
3. Remove OBD mounting screw and drop the plug down. (FIGURES 48, 49)
4. Remove air conditioning duct. (FIGURE 50)
5. Trim back the plug harness sheath. (FIGURE 51)
6. Using the wiring diagram, match up the wires and splice them together with the t-tap connectors. (FIGURES 52, 53, 54, 55, 56, 57, 58)
ELECTRONIC BYPASS MODULE
FROM
PIN# (WIRE/COLOR)
VEHICLE’S WIRING HARNESS
BLUE
6 (TAN/BLACK)
RED
16 (RED/WHITE)
GREEN
14 (TAN)
BLACK
4 (BLACK)
7. Once all the wires have been connected you will need to secure the EBM under the dash and away from any source of heat and/or any moving parts. (FIGURE 59)
8. Reassemble the dash by reinstalling the air conditioning duct, lower dash cover, lower dash hardware, and side fuse box cover.
9. EBM installation complete.
10. Remove the cover from the fuse box in the engine compartment. (FIGURE 60)
11. Remove the 30-amp fuse in Location #2 labeled as "ESC/ALC EXH". (FIGURES 61, 62)
If the fuse is not removed a warning light will be displayed in the instrument cluster.
12. Reinstall the fuse box cover.
13. Installation complete.