ProductContent
BESTSELLER
2004-2014 Ford F150 Lincoln Mark LT Tailgate Assist Shock Kit

Risk-free order
Ships today from our nearest US warehouse.
Backed by our 100% money-back

FITMENT
- 2004-2014 Ford F150 &2006-2008 Lincoln Mark LT
- NOTE: Does not fit Flareside/Stepside models.
DESCRIPTION
Product Overview
- The Tailgate Assist Shock Kit provides a smooth, controlled lowering motion that reduces stress on factory cables, hinges, and tailgate components. Designed specifically for 2004-2014 Ford F-150 and 2006-2008 Lincoln Mark LT models, this bolt-on upgrade installs using factory mounting locations without drilling.
- Whether you're loading tools, gear, or groceries, the controlled descent adds convenience while helping protect your truck from unnecessary wear.
Key Features
- Slows your tailgate's descent with a smooth, controlled motion to prevent sudden drops and loud slams.
- Utilizes existing factory mounting points and OEM bolts for a true bolt-on installation.
- Built from premium, high-strength steel components for long-lasting durability.
- Eliminates harsh impact during opening, significantly reducing strain on your factory cables, hinge points, and tailgate pivots.
FAQ
Q: How do I know if I have a Flareside or Stepside truck?
A: Flareside/Stepside models have an external rear fender with a narrower bed. If your truck has a standard fleet-side bed, this kit will fit. Check your bed style before ordering.
Q: Will I need to drill any holes?
A: No. This is a true bolt-on upgrade that uses existing factory mounting points and OEM bolts — no drilling required.
Q: Does the tailgate still open normally?
A: Yes. The tailgate functions exactly as designed — the assist shock simply slows and controls the tailgate’s descent after release, reducing strain on factory cables, hinges, and pivot points.
Q: Why is a tailgate assist especially useful on 2004-2014 F-150 trucks?
A: The factory tailgate can drop quickly when opened, creating impact on cables, hinges, and pivot points. A tailgate assist helps provide a smoother lowering motion while reducing repeated stress on factory components.
Q: Need a tailgate assist for a newer F-150 or a Super Duty?
A: For 2015-2025 F-150, we carry a direct-fit tailgate assist kit. For Super Duty F-250/F-350/F-450, check out our 2017-2024 Super Duty kit.
Built by diesel guysTrusted by diesel guys
Derek W.
Verified buyerRunning between three rig sites every week, was burning through DEF in about 2 weeks. Getting 6 weeks per jug now. Regen lockouts used to cost me half a day in the field, that's done with.
Chris D.
Verified buyerGot four trucks on the ranch, did this one first to see how it'd go. Eight months in, no codes, pulls hay like she's new again. Other three are getting done before winter.
Travis M.
Verified buyerTowing the boat down to the Keys used to kill me at 11 mpg. Got 15.4 last trip, same boat, same route. Pipe looks stock from the outside, none of my buddies even noticed it's gone.
Mike R.
Verified buyerHauled my horses from Fort Worth up to Amarillo last month, got 17.8 empty on the way back. Was running around 13 before. Pulls a lot better up the grades too, didn't expect that part.
Jason T.
Verified buyerUsed to go into regen every 280 miles when I was loaded down, now I'm pushing 580 with no regen at all. EGTs run way cooler too pulling the skid steer. Wish I had done this sooner, honestly.
Brandon L.
Verified buyerBought it used and the previous guy had wiped the delete history clean. Got everything put back the right way, ran the protocol, passed smog first try. Truck finally drives like it should.
Trusted by 10,000+ american diesel owners
We also have deletes
Full delete bundles for your truck — pick fitment to see matching kits.
Choose make, engine, and model year, then tap Show my kit.
TRUE AMERICAN DIESELVS.OTHER RETAILERS

24/7 access to a real mechanic - not a chatbot or ticket queue
Support hidden behind contact forms and multi-day email replies
Guaranteed Fitment Or Your Money Back - every kit, every truck
Compatibility warnings buried in fine print, after you've already paid
5,000+ verified reviews, sorted by your exact engine platform
One generic review count for every truck on the site
Proven 5–8 MPG gain - real dyno results, not a marketing guess
Vague performance claims with no data behind them
Lifetime warranty, spelled out in plain terms - no fine print maze
Vague "we'll fix it" warranty language, no stated terms
Recently Viewed
Got questions?
The stuff that keeps you up at night before you commit. Answered in plain talk by guys who actually wrench on these trucks.
A full mandrel-bent stainless DPF and CAT delete pipe, EGR block-off plates and gaskets, DEF delete components, all mounting hardware and clamps, and your preloaded tuner with the custom tune for your VIN. We don't ship anything you don't need, and we don't leave anything out that you do.
No. The custom tune disables the codes the deleted hardware would otherwise throw. Dash stays clean. If a real fault code pops up after install, call our line and a tech walks you through it. Usually it's a sensor that got unplugged during the wrench work, takes 5 minutes to sort out.
We pull your VIN before we ship. Engine, year, trim, cab config, all verified against the kit. If it doesn't fit your truck, you send it back and we either ship the right kit or refund you in full. Fitment is on us, not you. That's why we call it a fitment guarantee.
Most of our customers do. Average install is 2 to 4 hours with basic hand tools, sockets, ratchet, jack stands. You'll get the step-by-step install video emailed after purchase and a 24/7 phone line if you get stuck. If you can change your own oil, you can run our protocol.
Real custom files. Built in-house by guys who've been turning wrenches and writing tunes on Cummins, Duramax, and Powerstroke platforms for years. Every tune is dialed to your year, your engine, and how you actually drive the truck. No outsourced generic tunes pulled off a shared drive.
Once we've got the base files for your platform, dialing it in for your specific truck takes about 20 minutes. Charging $300 for that didn't sit right with us. We'd rather give you the better experience and earn the call when your buddy's truck needs help.
You call us. Real diesel techs, US-based, picking up the phone. We help with install troubleshooting, tune adjustments, fitment issues, codes, anything. We don't disappear after the sale, and the line doesn't go to voicemail. Phone number is at the bottom of every email and on every page of this site.
Yes. The custom tune is reversible, flash the stock file back through your tuner and the truck reads as factory again. The only thing that's permanent is the deleted hardware itself, but most buyers in the diesel community see a properly executed delete as a value-add, not a deduction. We can also ship the OEM-style reverse plates if you want to put the factory exhaust back on for resale.
Lifetime warranty on the stainless delete pipe, no rust-through, no cracks, ever. 2-year warranty on the EGR delete plates, gaskets, and hardware. If anything fails, we ship a replacement same day. The tuner itself carries the manufacturer warranty through EZ Lynk or HP Tuners.
Orders ship from Fort Worth within 1 to 2 business days. Free express shipping anywhere in the lower 48. Most orders land in 3 to 5 days. You'll get tracking the second it leaves the shop.





