Quick Clip Under Bumper Flap Dually Extension Kit
$101.53
$126.91 save $25.38
or as low as $9/mo with flexible financing — 4, 6, or 12 months. Options at checkout.
Smooth Air Ride
Patented air-bag suspension absorbs road shock between truck and trailer for a noticeably calmer ride.
Reduces Trailer Sway
Air cushioning keeps the trailer tracking straight through rough pavement, expansion joints, and crosswinds.
1-Year Manufacturer Warranty
Every Shocker Hitch is covered for 365 days against defects in material or workmanship, plus a 60-day satisfaction guarantee.
Fast Installation
Drop-in fit using standard hitch pins — no drilling, welding, or special tools required to install.
Stop destroying your trailer and cargo.
Every bump, pothole, and expansion joint sends a violent jolt through your trailer frame, damaging cargo and wearing out your truck. Shocker Air Ride Hitches absorb that punishment at the coupling, before it reaches your trailer.
This Quick Clip under bumper rock guard dually extension kit is great for pickups with over-size tires or dually pickups for extra rock guard protection. This premium composite rubber dually mud flaps extension kit is ideal for dually pickup trucks or pickups with over-sized tires. Made with the same composite rubber that the quick clip under bumper tow flaps are made with for a great integrated look and giving you way more rock guard protection. The dually extension add-on kit give you an additional 6-1/2" to each side along with more height coverage. The optional extension kit comes with all mounting hardware needed for a fast installation. Made in the USA. California Residents: Proposition 65 Warning
- Great for Dually Pickups or Over-Size Tires. Sold in a Pair - One for Each Side Composite Rubber 6.5" of Additional Width on Each Side + Extra Height Works with Quick Clip Under Bumper Mud Flaps Bolt on Install with Hardware Included Doesn't Work with Adjustable Under Bumper Flaps (Only works with standard non-adjustable) Made in the USA
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$101.53
Still researching?
Skip the product wall — these are the four guides every buyer actually opens before they decide.
Installation Guide
Step-by-step videos for every Shocker family. What's in the box, what tools you need, and how long it takes.
Watch the installAir Pressure Setup
How to dial in air pressure by trailer weight so the ride is right the first time and the hitch lasts longer.
See psi by loadTowing Capacity Guide
Match GTW, tongue weight, and receiver size to your truck class so you don't over- or under-buy.
Read the guideConfigure Your Hitch
60-second fit quiz — answer a few questions about your truck and trailer, get a tailored recommendation.
Start the quiz
- 1-Year Manufacturer Warranty
- 60-Day Returns
- 20,000+ Customers
- Ships from Canada