INSTALLATION INSTRUCTIONS
REAR SPACER SHIMS


CONTENTS:
Ensure that you have all of the following components in your kit before proceeding. If any item is missing or damaged, please contact One Ton Garage immediately.

  • Two (2) machined aluminum spacer shims
  • Eight (8) M10x1.25 bolts
  • Eight (8) M10 split lock washers
  • Installation instructions

TOOLS NEEDED:
Following are the minimum recommended tools that may be required to install the rear spacer shims.

  • Car jack (and jack stands)
  • Lug nut wrench
  • Small, flathead screwdriver
  • Ratchet with socket sizes: 10mm, 12mm, 14mm, 17mm

INSTALLATION:
Read through the following instructions thoroughly at least once before starting. Estimated time for completion of installation: approximately 50 minutes.

Step 1: Removal of rear wheel
Activate the emergency/parking brake, and jack up the rear end of the vehicle. Secure the vehicle on jack stands before proceeding. Loosen the lug nuts and remove the rear wheel. Look behind the rear hub assembly (Figure 1).


Figure 1: All of the work will be performed behind the rear hub assembly, the side indicated by the arrow

 

Step 2: Removal of rear hub assembly
Stick a small, flathead screwdriver into the ABS plug and use it to push down on the tab as you pull the end of the plug to remove it (Figure 2). Then remove the 10mm nut affixing the parking brake cable bracket (Figure 3, A), and the 14mm bolt for the brake hard line (Figure 3, B). Now you are ready to unbolt and remove the four 12mm bolts that attach the rear hub assembly to the suspension arm (Figure 4). Once all four bolts are removed, slowly pull the hub assembly away from the suspension arm, making sure not to kink or bend the brake line. The hub assembly will only need to be pulled a few inches from the suspension arm to install the spacer shim.


Figure 2: Insert a flathead screwdriver into the top end of the sensor plug and push down to lift the plug’s latch.


Figure 3: Arrow A points to the 10mm parking brake cable bracket nut, and Arrow B to the 14mm brake line bracket bolt.


Figure 4: These are the four 12mm bolts affixing the rear hub assembly.

 

Step 3: Installation of spacer shim
Place a spacer shim over the back side of the hub assembly (Figure 5), and then place the hub assembly with shim installed back on the suspension arm bracket. Run the 17mm bolts provided in the kit, with split lock washers installed, through the suspension arm mounting bracket, and thread them into the hub assembly. (If the bolts do not go in easily, the hub assembly might have shifted slightly during removal. To realign the mounting holes, simply release the parking brake, grab and rotate the assembly by the drum brake, and reapply the parking brake when the holes are aligned.) Tighten the four mounting bolts in a cross pattern in two steps, first hand tight, and then to a final torque of 46 ft-lb.


Figure 5: Here the aluminum spacer shim is shown installed on the hub assembly ready to be reassembled.

 

Step 4: Reinstallation of components
With the rear hub assembly reinstalled with the spacer shim, it is time to reinstall the other fasteners that were previously removed. Maneuver the brake line into its bracket and tighten its mounting bolt. Then attach the parking brake bracket nut and torque to 48 in-lb. Finally, plug the ABS sensor cable back into its plug. Mount the wheel, lower the car, and torque the wheel lug nuts to specification. Installation on the other side is exactly the same.

NOTE: This product is recommended for off-road use only. One Ton Garage and its affiliates are not responsible for misuse or any damage incurred due to improper use or installation.

 

 

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