How to Install Front DuroBumps: 2nd / 3rd Gen Tacoma, 4th / 5th Gen 4Runner, FJ Cruiser, Lexus & GX460 / 470
Step 1. Remove Front Wheels
To begin, pre-soak your old OEM bump stops with Liquid Wrench for an easier removal. Then, remove the front wheels from your truck using jack stands.
Important Note: DuroBumps to be installed at the rear of the LCA only. Do not install DuroBumps in the front.
Step 2. Remove Old OEM Bump Stops
Remove old OEM bump stops located at the REAR of the LCA with channel-locks, pipe wrench or similar. Ensure you don’t break the threaded stud from the OEM bump stop during removal.
Step 3. Clean LCA Using Scraper
Take a scraper and clean any mud/ debris from the LCA.
Step 4. Drop Flange Bolt into Front Bump Stops
Drop the provided flange bolt into your new front bump stops.
Step 5. Apply Thread Locker
Then coat the threads with the provided single-use medium (blue) thread locker.
Step 6. Install New DuroBumps Bump Stops
Install new bump stops using a 14mm deep socket and ratchet. The notch in the base of the DuroBump should face the wheel.
Step 7. Torque To ≈ 15 – 18ft⋅lb
Tighten the bolt until snug (≈ 15 – 18ft⋅lb) Do not over tighten the bolt. Repeat on the other side.
Step 8. Reinstall Front Wheels
Reinstall wheels on both sides. Lastly, you’ll need to tighten lug nuts to 93 ft·lbs or to manufacturer’s recommendations before reinstalling the wheels. And, you’re done!