Installation Instructions: JT Gladiator Game Changer Suspension, RockSport Black Shock
MetalCloak Official Installation Guide
JT Gladiator Game Changer Suspension
RockSport Black Shock
The MetalCloak experience includes ease of installation. We design for most contingencies, but installation may differ based on your Jeep's condition, configuration, and model year. We continually improve our instructions — if you find anything unclear or that doesn't match your specific Jeep, please call or email us with feedback and photos.
Terms used in these instructions that you may not be familiar with: contact us at 916-631-8071 or [email protected].
MetalCloak uses stainless steel hardware where possible. A tube of Silver Anti-Seize is provided and must be used on all bolts. Only a small amount is needed per bolt.
The baking process in powder coating can alter the metallurgical properties of the coils, resulting in loss of lift properties. Powder coating the coils will void any warranty stated or implied in relation to the coils.
This product is sold without warranty expressed or implied. The effectiveness, warranty, and longevity of this equipment are directly related to the manner in which it is installed, used, and maintained. The user assumes all risk. If you are unsure of what you are doing, please leave mechanical or safety-critical work to a skilled mechanic.
MetalCloak recommends replacing the factory front drive shaft. The factory drive shaft binds at the transfer case side and is too short for the additional travel this suspension provides. An aftermarket drive shaft clears the transfer case and is optimal for maximum articulation.
Section 1 — Tools Required
- Socket & Ratchet Wrench Set
- SAE & Metric Sockets and Wrenches
- Metric Hex Sockets / Allen Wrenches
- Electric Drill — 1/8" to 1/2" Drill Bits
- Die Grinder
- 3/8" Flare Nut Wrench (10mm)
- Automotive Lift (strongly recommended)
- Axle Stands
- Coil Spring Compressor (if needed)
- Drain Pan (rear brake line work)
- Pliers and Center Punch
- Ratchet Strap (for axle centering)
MetalCloak suspension systems use upper isolators to correctly position the coil. You must remove the stock isolators before installing the provided ones. Use the table below to identify the correct isolator type for your specific Jeep model.
| Isolator Type | Jeep Model | Installation Location |
|---|---|---|
| Tall | JL Wrangler Non E-Torque | Upper Front Passenger |
| Tall | JL Wrangler 4xE | Upper Front Driver & Passenger |
| Tall | JL Wrangler Diesel | Upper Front Driver & Passenger |
| Tall | JT Gladiator Diesel | Upper Front Driver & Passenger |
| Short | JK Wrangler (All Models) | Upper Front Driver & Passenger |
| Short | JL Wrangler E-Torque | Upper Front Driver & Passenger |
| Short | JL Wrangler Non E-Torque | Upper Front Driver |
| Short | JT Gladiator 3.6L Motor | Upper Front Driver & Passenger |
| Rear | JL Wrangler Non E-Torque | Upper Rear Passenger |
| Rear | JL Wrangler 4xE | Upper Rear Driver & Passenger |
| Configuration | Caster | Front Upper | Front Lower | Rear Upper | Rear Lower |
|---|---|---|---|---|---|
| MetalCloak Lift | 6° | 19.75" | 24" | 16.5" | 23.75" |
To install lift components you will need to fully droop the suspension front and rear, but not at the same time. We strongly recommend placing the vehicle on an automotive lift with all appropriate safety precautions. Always use axle stands to support the axle when suspension components are disconnected.
Disconnect Front Sway Bar Links
Disconnect the front sway bar links using an 18mm wrench and a 6mm allen wrench. Save all hardware.
Remove Brake Line Brackets from Frame
Using a 10mm socket, disconnect the brake line brackets attached to the frame. Save all hardware.
Disconnect Front Track Bar
Using a 21mm socket, disconnect the stock front track bar. Save all hardware.
Remove Front Shocks
Use an 18mm socket and wrench to remove the front shocks. Save all hardware.
Remove Front Springs
Remove the stock front springs and any spacers that have been used if the vehicle has been previously lifted.
Remove Upper Control Arm Heat Shields
Disconnect the upper control arm heat shield on both sides at the frame using a 10mm socket. Save the heat shields and all hardware.
Remove Front Lower Control Arms
Use a 24mm socket and wrench to remove the stock bolts from the front lower control arms. Save all hardware.
Install Front Lower Control Arms
Install the MetalCloak front lower control arms so that the adjustable joint is at the rear and the arm angles inboard to provide tire turning clearance. Starting length: 24" eye-to-eye.
Remove Front Upper Control Arms
Using an 18mm wrench and socket, remove the front upper control arms. Save all hardware.
Install MetalCloak Front Upper Control Arms
Install the MetalCloak front upper control arm using the stock hardware. Starting length: 19.75" eye-to-eye.
Disconnect Spring Perch Bracket
Using a 10mm socket, disconnect the bracket from the spring perch on the axle. Droop the suspension to gain access to the spring perch.
Drill Spring Perch Center Hole
Drill out the center hole using a step bit, or start with a smaller drill bit and work your way up to 1/2".
Install Front True Dual Rate Coils
Install the front coils. Make sure the tightly wound coils are oriented upward.
Seat Coil on Axle Base
Slip the bottom of the coil onto the coil base on the axle. Rotate the coil until it is seated properly on the coil base.
Assemble Bump Stop Disks
Select the appropriate screw length so the threads stick out of the bottom disks approximately 3/4". Assemble the bump stops inside the installed coil by feeding the 1/2" countersunk screw through the cover plate and then threading it through the bump stop disks. The center hole in the disk is intentionally small to create the most rigid assembly possible after installation.
Secure Bump Stop Assembly
The screw is backed by a 1/2" flanged nylon lock nut. Install the nut and tighten the hardware using a 5/16" hex key socket or allen wrench and a 3/4" wrench. Tighten until snug — the hardware will not bottom out but will instead begin to compress the disks.
Install Lower Shock Mount over Stock Mount
Place the lower shock mount over the stock shock mount and install the factory 10mm spring perch hardware. Tighten fully.
Install Provided Bracket Bolt and Nut
Install the provided bolt and nut between the factory shock mount and fully tighten using a 9/16" socket and wrench.
Install Outboard Spacer Hardware
Install the provided spacer, nut, washer, and bolt and fully tighten using a 19mm wrench and 8mm allen wrench.
Align and Mount Reservoir to Frame
Align the reservoir mount to the frame and brake line bracket. Once aligned, reinstall the brake line bracket over the reservoir mount with the factory bolt.
Install Reservoir Mount Spring-Side Bolt
Using the provided bolt and flag nut, install the part of the reservoir mount closest to the spring. Use a pair of pliers to hold the flag nut in place while threading the bolt.
Tighten Reservoir Mount and Brake Line Bracket
Using a 5/32" allen wrench, tighten the reservoir mount bolt closest to the spring. Then fully tighten the brake line bracket using a 10mm socket.
Install Shock into Upper Mounting Hole
Install the shock into the upper mounting hole and attach with the OE bolt.
Install Shock Eye into Lower Mount
Install the shock eye into the lower outboard mount using the supplied 1/2" bolt and flange nut from the mount kit.
Tighten Upper and Lower Shock Mounting Bolts
Tighten the upper shock bolt using an 18mm socket. Tighten the lower shock bolt using a 19mm socket and wrench.
Attach Reservoir with Hose Clamps
Using the provided hose clamps, attach the reservoir to the reservoir mount. Slide the hose clamps down to align with the holes on the mount.
Tighten Reservoir Hose Clamps
Using a 5/16" socket, tighten down the reservoir hose clamps.
Install Track Bar — Axle End
Install the front track bar, making sure the adjustable end goes into the stock bracket on the axle. Reuse the stock hardware.
Install Track Bar — Frame End
Install the fixed end of the track bar into the stock frame bracket. The clearance bends should point towards the front bumper, up and away from the differential cover. Reuse the stock hardware.
Tighten Track Bar Hardware and Center Axle
Fully tighten the stock hardware on both ends of the track bar using a 21mm socket and wrench. Tighten the jam nut on the track bar.
Lower the vehicle to the ground to confirm the axle is centered. If not, remove the bolt, adjust the track bar length, replace the bolt, and recheck. A ratchet strap on the frame or axle can help pull the frame in the needed direction if working alone.
Professional Alignment — Required
Install Bottom of Extended Sway Bar End Links
Using the factory hardware, install the bottom of the MetalCloak extended sway bar links.
Install Top of Extended Sway Bar End Links
Using the supplied hardware, install the top of the MetalCloak extended sway bar links.
Tighten Sway Bar End Links
Tighten with an 18mm wrench for the factory hardware and a 3/4" wrench and 18mm wrench for the supplied hardware.
Set Caster, Tighten All Hardware, Reinstall Heat Shields
Adjust the caster angle (target: 6 degrees) and toe as needed. Once set, tighten all hardware, reattach all brackets, and reinstall the upper control arm heat shields. Finally, tighten the jam nuts on all control arms.
Disconnect Stock Rear Shocks
Using a 21mm socket and wrench, disconnect the stock rear shocks. Save all hardware.
Disconnect Axle Electronics and Emergency Brake Bracket
Disconnect the locker plug, breath tube, wheel speed sensor lines, and emergency brake bracket from the axle.
Disconnect Rear Sway Bar Links
Disconnect the rear sway bar links using an 18mm wrench. Save all hardware.
Disconnect Stock Rear Track Bar
Using a 21mm socket and wrench, disconnect the stock rear track bar. Save all hardware.
Remove Stock Rear Coils
Remove the stock rear coil springs.
Remove Stock Rear Upper Control Arms
Use a 21mm socket and 24mm wrench to remove the stock bolts from the upper rear control arms. Save all hardware.
Install MetalCloak Rear Upper Control Arms
Using the stock hardware, install the MetalCloak rear upper control arms so that the adjustable joint is at the frame. Starting length: 16.5" eye-to-eye.
Remove Stock Rear Lower Control Arms
Use a 21mm socket and 24mm wrench to remove the stock bolts from the lower rear control arms. Save all hardware.
Install MetalCloak Rear Lower Control Arms
Using the stock hardware, install the MetalCloak rear lower control arms so that the adjustable joint is at the frame. Starting length: 23.75" eye-to-eye.
Place Rear Coil Cup
Place the rear coil cup on top of the rear True Dual Rate coil.
Install Rear True Dual Rate Coils
Install the rear True Dual Rate coils with the tightly wound coils oriented upward.
Seat Rear Coils on Axle Base
Slip the bottom of the coil onto the coil base on the axle and rotate until properly seated.
Install and Tighten Rear Track Bar
Install the MetalCloak rear track bar using the stock hardware. You may need to lower the vehicle to the ground to install one end of the track bar. Tighten the hardware using a 21mm socket and wrench.
Install Rear Extended Sway Bar End Links
Using an 18mm socket, install the extended sway bar end links to the frame and on the sway bar.
Mount Rear Shocks — Upper
Using an 18mm socket and wrench, install the RockSport Black Shock into the upper shock mount.
Mount Rear Shocks — Lower
Using an 18mm socket and wrench, install the RockSport Black Shock into the lower shock mount.
Mark Bump Stop Hole Locations
Center the rear bump stop onto the rear axle bump stop plate and mark the holes in preparation for drilling.
Center Punch and Drill Holes
Center punch the marked hole locations. Drill a pilot hole at each location and work your way up to a 3/8" drill bit.
Install Bump Stop Base Puck
Using a 1/2" wrench and a 3/16" allen socket, tighten the provided hardware into the drilled locations.
Stack Additional Bump Stop Pucks
Install the next puck (Side B) using the 1-3/4" woodscrews. Continue alternating Side A / Side B until the desired bump stop height is achieved for your tire size.
Disconnect Brake Line from ABS Line
Carefully disconnect the brake line from the ABS line.
Remove Stock Brake Line Spring Clip
Using pliers, remove the stock brake line spring clip.
Disconnect Brake Line at Frame
Using a 12mm wrench and 16mm wrench, disconnect the stock brake line at the frame.
Disconnect Brake Line at Caliper
Using a 15mm wrench, disconnect the brake line from the caliper. Save the bolt.
Install New Brake Line at Caliper
Install the new brake line into the caliper using the stock bolt. Make sure to place a brass washer on each side of the brake line.
Install Brake Line at Frame with Spring Clip
Install the brake line at the frame and secure with the provided spring clip.
Tighten Brake Line Connections
Using a 12mm wrench and 18mm wrench, fully tighten the brake line at the frame. Using a 15mm wrench, fully tighten the brake line at the caliper.
Reconnect Brake Line to ABS Line
Using zip ties, reconnect the brake line to the ABS line.
Lower Vehicle and Reconnect Axle Electronics
Lower the vehicle to the ground and reconnect the locker plug, breath tube, wheel speed sensor lines, and emergency brake bracket to the axle.
Adjust Rear Caster and Toe
Adjust the rear caster angle and toe as needed.
Tighten All Rear Hardware and Jam Nuts
Once the caster is set, tighten all hardware and tighten the jam nuts on all rear control arms.
Do not drive the vehicle until brakes have been fully bled and verified.
Refill Brake Reservoir and Bleed All Lines
Before the vehicle is ready to drive, refill the brake reservoir and bleed all air out of the brake lines. If you are not experienced with this process or have any reservations, consult a qualified mechanic.
Questions? We're Here.
MetalCloak Technical Support — Monday–Friday, 7:00 AM – 5:00 PM PST
Email: [email protected]