Introduction
This guide will walk through the correct installation procedure for the Grimm OffRoad JL Hardware Upgrade Kit.
Consumer Warning
All Grimm OffRoad products must be installed by a competent and qualified individual in accordance with the installation instructions intended for the product. Incorrectly installed products will void any warranties and may result in damage to the product or damage to the vehicle it was installed on. Read any provided instructions or guides and watch any available videos before attempting installation. If there are any questions, please contact Grimm OffRoad before starting installation.
Many products require the vehicle be properly raised and supported off the ground. The installer is responsible for confirming that this may be done in a safe manner and the correct equipment is available to perform the installation. Grimm OffRoad installation instructions assume the installer is able to properly and safely lift the vehicle.
Vehicles that have been modified will not perform the same as a stock vehicle. It is incumbent upon the owner of the vehicle to be aware of the differences the modifications will make to the driving characteristics of the vehicle. These may include (but are not limited to): changes in handling, braking, rollover angle, incompatibilities with the factory anti-lock braking systems, stability control systems, or traction control systems.
Tools
Parts
- M16-1.5 x 100mm Grade 10.9 Hex Head Bolt × 4
- M14-1.5 x 70mm Grade 10.9 Hex Head Bolt × 4
- M14-1.5 x 100mm Grade 10.9 Hex Head Bolt × 8
- M12-1.5 x 80mm Grade 10.9 Hex Head Bolt × 4
- M12-1.5 x 70mm Grade 10.9 Hex Head Bolt × 4
- M12 Flat Washer × 14
- M14 Flat Washer × 18
- M16 Flat Washer × 8
- M12-1.5 Hex Lock Nut × 6
- M14-1.5 Hex Lock Nut × 6
- M16-1.5 Hex Lock Nut × 4
Video Overview
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Remove one bolt at a time and replace with an M16-1.5 x 100mm bolt and lock nut with washers under the head of the bolt and lock nut.
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Torque with a 24mm wrench/socket to 215 lb-ft [295 Nm].
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Repeat for all four bolts on both front lower control arms.
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With an 18mm wrench/socket, loosen the stock bolts and nuts but do not remove yet.
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Grab one of the M12-1.5 x 70mm bolts and put a washer on it. Using your pry bar, support the lower shock eyelet so you can easily slide the stock bolt out. Once out, slide the new bolt with washer into the mount and then ease off the pry bar. Add another washer and lock nut.
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Torque with a 19mm wrench/socket to 90 lb-ft [120 Nm]
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Repeat for both front lower shock mounts.
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Remove one bolt at a time and replace with an M12-1.5 x 80mm bolt and lock nut with washers under the head of the bolt and lock nut.
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Torque with a 19mm wrench/socket to 90 lb-ft [120 Nm]
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Repeat for both front upper control arm axle side bolts.
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Remove the two screws holding on the heat shield with a 10mm wrench/socket and remove the heat shield.
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Repeat for both front upper control arm frame side heat shields.
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Remove one bolt at a time and replace with an M12-1.5 x 80mm bolt and washer, reusing the stock flag nut.
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Torque with a 19mm wrench/socket to 90 lb-ft [120 Nm]
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Reinstall the heat shield with a 10mm wrench/socket and torque to 40 lb-in [4.5 Nm] (Note, this is pounds per inch, not foot! Don't overtighten!)
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Repeat for both front upper control arm frame side bolts and heat shields.
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Remove the front axle side track bar bolt with a 21mm wrench/socket.
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Replace with an M14-1.5 x 70mm bolt and washer, reusing the stock flag nut.
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Torque with a 22mm wrench/socket to 135 lb-ft [185 Nm].
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Remove the front frame side track bar bolt and nut with a 21mm wrench/socket.
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Replace with an M14-1.5 x 70mm bolt and lock nut with washers under the head of the bolt and lock nut.
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Torque with a 22mm wrench/socket to 135 lb-ft [185 Nm].
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With an 18mm wrench/socket, loosen the stock bolts and nuts but do not remove yet.
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Grab one of the M12-1.5 x 70mm bolts and put a washer on it. Using your pry bar, support the lower shock eyelet and slide the new bolt in from the opposite direction, pushing the stock bolt out. Add another washer and lock nut.
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Torque with a 19mm wrench/socket to 90 lb-ft [120 Nm]
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Repeat for both rear lower shock mounts.
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Remove one bolt at a time and replace with an M14-1.5 x 100mm bolt and lock nut with washers under the head of the bolt and lock nut.
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Torque with a 22mm wrench/socket to 135 lb-ft [185 Nm].
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Repeat for all four bolts on both rear lower control arms.
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Remove one bolt at a time and replace with an M14-1.5 x 100mm bolt and washer, reusing the stock flag nut.
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Torque with a 22mm wrench/socket to 135 lb-ft [185 Nm].
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Repeat for all four bolts on both rear upper control arms.
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Remove the rear axle side track bar bolt with a 21mm socket/wrench.
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Replace with an M14-1.5 x 70mm bolt and washer, reusing the stock flag nut.
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Torque with a 22mm wrench/socket to 135 lb-ft [185 Nm].
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Remove the rear frame side track bar bolt and nut with a 21mm .
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Replace with an M14-1.5 x 70mm bolt and lock nut with washers under the head of the bolt and lock nut.
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Torque with a 22mm wrench/socket to 135 lb-ft [185 Nm].
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Installation is complete!
With any modified vehicle, or any vehicle used offroad, it is a good idea to check bolt torques periodically and visually inspect components regularly.
Because the track bar bolts were replaced and the track bars have the possibility of shifting slightly in their mounting holes, the steering wheel may no longer be centered. Adjust the length of the drag link as needed to center the steering wheel.
Installation is complete!
With any modified vehicle, or any vehicle used offroad, it is a good idea to check bolt torques periodically and visually inspect components regularly.
Because the track bar bolts were replaced and the track bars have the possibility of shifting slightly in their mounting holes, the steering wheel may no longer be centered. Adjust the length of the drag link as needed to center the steering wheel.