BARNES4WD B4WK12682 Jeep JK Rear Upper Shock Mount Extension Installation Guide

BARNES4WD B4WK12682 Jeep JK Rear Upper Shock Mount Extension

Product Information

Jeep JK Rear Upper Shock Mount Extension

Thank you for purchasing our Jeep JK Rear Upper Shock Mount Extension! This product is designed to extend the rear upper shock mount on your Jeep JK vehicle. It allows for proper fitment and installation of rear shocks. The package includes all the necessary components, such as shock mount extensions, sway bar flag nuts, bolts, washers, and nuts.

Bill Of Materials:

Product Usage Instructions

Step 1:

Park your vehicle on a flat-level surface. Remove the rear shocks and rear sway bar mounts from the vehicle. If possible, it is recommended to jack up the rear end of the vehicle and droop the suspension for easier installation. Keep the factory upper shock bolts as they will be used to bolt the new bracket to the factory location.

Step 2:

Using Template 1 and Template 2 provided, mark out and cut the recommended area from the factory mount locations. Align the template with the factory mount and ensure that the cutout for the shock aligns between the template and factory mount. The template indicates the material that needs to be removed from the factory bracket. Make sure the two red corners of the template meet each other when laying it out.

Step 3:

Test the new brackets using the factory hardware. Ensure that they sit flat against the factory shock mount. Trim away any additional material if necessary. There may be a slight gap between the cross member and the new shock mount.

Step 4:

With the new shock mounts bolted in their proper locations, mark the bolt holes on the cross member and the side of the frame. Remove the brackets and use a 13/32 drill bit to drill out the cross members’ holes. Use a 17/32 drill bit to drill out the holes on the side of the frame.

Step 5:

Apply a good coat of paint to the frame, cross member, and factory shock mount to prevent rusting. This is also a good time to paint or powder coat the new upper shock mounts.

Step 6:

Bolt the shock to the new upper shock mount extension using the provided 3/8 hardware. Place a washer on both the bolt head side and the nut side. Ensure that the head of the bolts is on top of the new upper shock mount.

Step 7:

Using the factory hardware, bolt the new upper shock mounts in the factory mount. Do not fully tighten the factory hardware until you have fully bolted the bracket to the cross member and frame. Use the provided hardware to bolt the new shock mounts to the cross member with 3/8 hardware and to the side of the frame with 1/2 hardware. Use washers on the bolt head side, and place the nuts on the inside of the cross member and frame.

Step 8:

With the factory sway bar mounts removed, bolt Template 3 in the factory sway bar mount location. Mark out the new bolt holes for the new location of the sway bar mounts. Use the same template for both sides, ensuring that the template is facing the correct way each time. Use the appropriate hardware to bolt the new sway bar mounts.

Installation Instructions

Jeep JK Rear Upper Shock Mount Extension Installation Instructions

Thank you for purchasing our Jeep JK Rear Upper Shock Mount Extension!

Installation Notes:

• Modifications to your exhaust may be necessary to clear the relocated sway bar and shocks
• Trimming or removal of the factory exhaust shield above the muffler maybe necessary to clear the new bracket and shock
• This bracket will move your shock up and back, thus changing the angle of your shock travel and possibly your ride quality
• A moderate amount of cutting and drilling is required to install these brackets
• With the factory lower shock mount, a long travel shock is required to use these mounts to prevent any damage to the mount or to your shocks
• Using our Jeep JK Heavy Duty Rear Lower Control Arm and Rear Shock Relocation Bracket (Part # B4W0040K), the factory shocks could be used
• These brackets have been tested with factory shocks; test fit your setup before any modifications are made to your vehicle to ensure proper fitment

Tools required

• Cut-off wheel, plasma cutter, or other adequate cutting devices
• 13/32” drill bit
• 17/32” drill bit
• 3/4” and 9/16” socket and ratchet
• Spray Paint and/or Powder Coater

Contents of each box

Bill Of Materials For B4WK12682- Jeep JK Rear Upper Shock Mount Extension

QTY| Part Number| Etch Number| Description
1| B4WK12524| N/A| JK Rear Upper Shock Mount Extension Passenger Side
1| B4WK12525| N/A| JK Rear Upper Shock Mount Extension Driver Side
1| B4W125109P| 109 BP| JK Rear Sway Bar Flag Nut Passenger Side
1| B4W125112P| 112 BP| JK Rear Sway Bar Flag Nut Driver Side
12| 37C100HCS8Y| N/A| 3/8”-16 x 1” Hex Bolt
12| 37NWSAFY| N/A| 3/8” SAE Flat Washer
8| 37CNNE0Y/GC| N/A| 3/8”-16 Nylock Nut
2| 50C125HCS5Z| N/A| 1/2”-13 x 1-1/4” Hex Bolt
2| 50NWSAFY| N/A| 1/2” SAE Flat Washer
2| 50CNNE0Y/GC| N/A| 1/2”-13 Nylock Nut

Step 1:
With the vehicle parked on a flat level surface, remove the rear shocks and the rear sway bar mounts from the vehicle. If possible, the installation of these brackets would be easier with the rear end jacked up and the suspension drooped. Keep the factory upper shock bolts, they will be used to bolt the new bracket to the factory location.

Step 2:
Using Template 1 and 2, mark out and cut the recommended area from the factory mount locations. Cut out and align the template and the factory mount, make sure the cutout for the shock aligns between the template and factory mount. The template is the material that will be removed from the factory bracket. Make sure the two red corners meet each other when laying the template out .

Step 3:
Test the new brackets using the factory hardware, make sure they sit flat against the factory shock mount and trim away any more material if necessary. There may be a slight gap between the cross member and the new shock mount.

Step 4:
With the new shock mounts bolted in their proper locations, mark the bolt holes on the cross member and the side of the frame. Remove the brackets and use a 13/32” drill bit to drill out the crossmembers holes. Use a 17/32” drill bit to drill out the holes on the side of the frame.

Step 5:
Give the frame, cross member, and factory shock mount a good coat of paint to prevent any rusting. Now would be a good time to paint or powder coat the new upper shock mounts as well.

Step 6:
Bolt the shock to the new upper shock mount extension with the provided 3/8” hardware with a washer on both the bolt head side and the nut side. Make sure that the head of the bolts is on top of the new upper shock mount as shown in the image below.

Step 7:
Using the factory hardware, bolt the new upper shock mounts in the factory mount. Do not fully tighten the factory hardware until you have the bracket fully bolted to the cross member and frame. Using the provided hardware, bolt the new shock mounts to the cross member with the 3/8” hardware and to the side of the frame with the 1/2” hardware. Use the washers on the bolt head side, and the nuts will go on the inside of the cross member and the frame.

Step 8:
With the factory sway bar mounts removed, bolt Template 3 in the factory sway bar mount location. Mark out the new bolt holes for the new location for the sway bar mounts. Use the same template for both sides and make sure the template is facing the correct way each time. Use a 13/32” drill bit to drill out the holes.

Step 9:
Place the appropriate flag nut on the inside of the frame on each side of the Jeep. Using the new flag nuts and the provided 3/8” hardware, mount the rear sway bar in its new location.

Step 10:
We suggest removing the coils and cycling the suspension to ensure proper bump stop placement, so you do not damage your shocks or the new upper shock mount by overtraveling or bottoming out your shocks.

Congratulations you have completed the installation of your new Jeep JK Rear Upper Shock Mount Extensions!

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