DuroBumps DBR35TU Extended Bump Stops Instruction Manual
- May 15, 2024
- DuroBumps
Table of Contents
DuroBumps DBR35TU Extended Bump Stops
Product Information
- Specifications:
- Part Numbers: DBR35TU, DBR425TU
- Product Name: Rear Bump Stops
- Included Items:
- (2) Two rear 3.5 DuroBumps
- (2) Standard mounting plates
- (4) Four JIS 10.9 M6-1.0 30 mm socket cap bolts
- (4) Four M6-1.0 hex nuts
- (1) M4 hex key / Allen wrench
- (1) One FREE sticker
Product Usage Instructions
- Step 1: Prepare the Vehicle
- Following the vehicle manufacturer’s recommendations, use a properly rated jack to lift the rear of the truck.
- Support the frame rails with jack stands and lower the truck so the weight rests on the jack stands.
- Step 2: Remove OEM Bump Stops
- Work on one side at a time. Support the axle with a floor jack. Loosen the nuts on the OEM square-shaped U-bolts using a 19 mm deep socket wrench until the OEM bump stop is free. Do not fully remove the nuts, just loosen them enough to remove the OEM bump stop.
- Note : There are 2 tabs/ears clamped down by the U-Bolts. Once loosened, the OEM bump stop will slide out.
- Step 3: Install DuroBumps
- Install the DuroBumps in place of the OEM bump stops. Ensure they are securely in position.
- Step 4: Repeat for the Other Side
- Repeat steps 2 and 3 on the other side of the vehicle.
- Step 5: Finalize Installation
- Reinstall the wheels and lower the vehicle back to the ground. Torque the lug nuts to factory specifications.
- Important: After driving 250, 500, and 1000 miles post-installation, recheck the torque of the U-bolt nuts to ensure they are at factory specifications. U-bolts stretch after installation and need to be re-torqued periodically. Now you’re ready to hit the trails or cruise in style!
FAQs
- Q: How often should I check the torque of the U-bolt nuts?
- A: It is recommended to recheck the torque after driving 250, 500, and 1000 miles post-installation to ensure they are at factory specifications.
What’s included
- (2) Two rear 3.5” DuroBumps
- (2) Standard mounting plates
- (4) Four JIS 10.9 M6-1.0 30 mm socket cap bolts
- (4) Four M6-1.0 hex nuts
- (1) M4 hex key / Allen wrench
- (1) One FREE sticker
Tools Required
- Jack and Jack stands
- 19 mm deep socket
- Scraper or wire brush to clean debris
- Torque wrench
Instructions
- Step 1: Following vehicle manufacturer recommendations, use a properly rated jack. Lift the rear of the truck with a floor jack and support the frame rails with jack stands. Lower the truck so the weight is fully resting on the jack stands.
- Step 2: Work on one side at a time. Support the axle using a floor jack. Loosen the nuts on the OEM square-shaped U-bolts using a 19 mm deep socket wrench until the OEM bump stop is free. You do not need to fully remove the nuts from the U-bolts. Just loosen them enough to remove the OEM bump stop.
- Note: There are 2 tabs/ears clamped down by the U-Bolts. Once the U-bolts have been loosened, the OEM bump stop will slide out.
- Step 3: On the provided mounting plates, there are (2) two tapered holes to mount the DuroBumps to the steel mounting plate. Install the provided socket cap bolts through the bottom of the steel mounting plate and into the DuroBumps mounting holes. Press the provided M6 nuts into the bump stop casting and tighten the bolt with the Allen wrench until snug (do not over-tighten). The machine-head bolts should be flush with the bottom of the steel mounting plate. With the DuroBumps mounted to the steel base plate, it is now ready to mount on top of the leaf pack, just like the OEM bump stop was mounted. Slide the ears/tabs of the base plate under the OEM U-Bolts. Once the mounting plate is in place, the U-bolts can be tightened evenly and torqued to factory specifications.
- Step 4: Repeat steps 2-3 on the other side.
- Step 5: Reinstall the wheels and lower the vehicle back to the ground. Torque lug nuts to Factory specifications.
- Please note: All U-bolts stretch after installation. It is very important to recheck the torque of your U-bolt nuts after driving 250, 500, and 1000 miles after the initial installation. Again, you need to check your U-bolts’ torque to verify that they are at factory specifications 250, 500, and 1000 miles after the initial installation. All U-bolts stretch after being installed and need to be re-torqued.
Now go hit some trails or cruise the mall … whatever you’re into! www.DuroBumps.com.
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