We researched and compared the top anti sag gate kits on the market, analyzing manufacturer specifications, published load ratings, and aggregated owner feedback from hundreds of reviews. Our evaluation focuses on real-world performance, ease of installation, and long-term durability to help you choose the right solution for your truck.
Each kit below has been assessed for its ability to prevent tailgate droop, support heavy loads, and resist corrosion. We highlight genuine strengths and limitations so you can make an informed purchase.
| Photo | Product | Score | Buy |
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Dee Zee DZ8780 Heavy Duty Anti Sag Gate Kit Best Overall 500 lb load capacity, zinc-plated steel, includes hardware |
9.0 | 🛒 Check Price |
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Rough Country 2575 Anti Sag Gate Kit Best Value 450 lb capacity, black powder-coated steel, bolt-on design |
8.7 | 🛒 Check Price |
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Tuff Truck USA TT-ASGK1 Anti Sag Gate Kit Premium Pick 600 lb capacity, stainless steel hardware, grease fittings |
8.4 | 🛒 Check Price |
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Lund 611700 Tailgate Assist Kit Easiest Install Gas strut design, 250 lb assist, no drilling |
8.1 | 🛒 Check Price |
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Putco 92005 Anti Sag Gate Kit Best for Chevy/GMC Fits Chevy/GMC 1500-3500, black e-coat finish |
7.8 | 🛒 Check Price |
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TruXedo 618501 Anti Sag Gate Kit Light Duty Option Aluminum brackets, 300 lb capacity, includes shims |
7.3 | 🛒 Check Price |
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Bully 80003 Anti Sag Gate Kit Budget Pick Steel brackets, 400 lb capacity, black paint finish |
7.1 | 🛒 Check Price |
1. Dee Zee DZ8780 Heavy Duty Anti Sag Gate Kit: Best Overall
The Dee Zee DZ8780 is a heavy-duty anti sag gate kit designed to eliminate tailgate droop on trucks. Based on our research of spec sheets and owner feedback, this kit features sturdy steel brackets and oversized hinge pins that distribute weight evenly. The zinc-plated finish provides excellent rust protection, even in harsh climates. Many users report a noticeable improvement in tailgate alignment and reduced stress on the factory hinges.
However, installation is more involved than some competitors, requiring removal of the tailgate and careful alignment. This kit is best for truck owners who prioritize durability and load capacity over quick installation. Those with limited mechanical experience may want to consider a simpler option.
- Reinforced steel brackets with heavy-duty hinge pins
- Zinc-plated finish resists rust and corrosion
- Compatible with most full-size and mid-size trucks
Pros: Exceptional build quality and corrosion resistance; Supports heavy loads without sagging
Cons: Installation requires some mechanical skill
2. Rough Country 2575 Anti Sag Gate Kit: Best Value
The Rough Country 2575 offers a straightforward solution for tailgate sag at a reasonable price. Our evaluation of owner reviews and manufacturer specs shows that this kit uses a bolt-on design that installs in about 30 minutes. The black powder-coated steel brackets provide good corrosion resistance, though some owners noted minor chipping after a year of use. The load capacity is sufficient for most daily driving needs.
This kit is ideal for truck owners who want a no-fuss upgrade without breaking the bank. However, if you frequently carry extremely heavy loads or work in highly corrosive environments, a zinc-plated option may offer better long-term durability.
- Direct bolt-on installation, no drilling required
- Black powder-coated finish for durability
- Fits most late-model GM, Ford, and Ram trucks
Pros: Very easy to install with basic tools; Affordable without sacrificing quality
Cons: Powder coating may chip over time
3. Tuff Truck USA TT-ASGK1 Anti Sag Gate Kit: Premium Pick
The Tuff Truck USA TT-ASGK1 is a premium anti sag kit built for extreme durability. According to manufacturer specs and owner feedback, the stainless steel construction and grease fittings make it a standout for those in salt belt states or off-road environments. The load capacity is among the highest we’ve seen, making it suitable for heavy tailgate loads like toolboxes or campers.
That said, the premium materials come at a higher cost, which may not be justified for casual users. Installation is also slightly more complex due to the added components. This kit is best for truck owners who demand maximum longevity and are willing to invest accordingly.
- Stainless steel hinge pins and brackets for maximum corrosion resistance
- Integrated grease zerks for easy maintenance
- Reinforced design supports up to 600 lbs
Pros: Top-tier corrosion resistance with stainless steel; Grease fittings extend component life
Cons: Higher price point than many competitors
4. Lund 611700 Tailgate Assist Kit: Easiest Install
The Lund 611700 is more of a tailgate assist than a traditional anti sag kit. It uses gas struts to help lower and lift the tailgate, reducing the strain on the user. Based on owner feedback, it works well for preventing future sag by reducing shock loads, but it may not correct significant existing droop. The clamp-on design requires no drilling and is very easy to use.
This product is best for those who want to reduce effort and prevent minor sag. If your tailgate already sags noticeably, a bracket-based kit like the Dee Zee would be more effective. Also, the load capacity is limited compared to steel bracket kits.
- Gas strut assists tailgate lowering and lifting
- Clamp-on installation, no tools required
- Reduces effort to open and close tailgate
Pros: Extremely easy to install in minutes; Makes tailgate operation smoother
Cons: Not a true anti sag kit; may not fix existing sag
5. Putco 92005 Anti Sag Gate Kit: Best for Chevy/GMC
The Putco 92005 is a tailored anti sag kit for Chevrolet and GMC trucks. Our research shows it integrates smoothly with the factory hinge points, providing a precise fit. The e-coat finish offers good rust protection, though some owners reported minor wear over time. The kit includes hardened pins that resist bending under load.
However, this kit is not compatible with other brands, limiting its appeal. Additionally, some users found the installation instructions lacking detail. It’s a solid choice for GM owners who want a direct-fit solution, but those with other trucks should look elsewhere.
- Specifically designed for Chevy and GMC trucks
- E-coated black finish for corrosion resistance
- Reinforced hinge brackets with hardened pins
Pros: Perfect fit for GM trucks; Durable e-coat finish
Cons: Limited to GM vehicles only; Installation instructions could be clearer
6. TruXedo 618501 Anti Sag Gate Kit: Light Duty Option
The TruXedo 618501 uses aluminum brackets to reduce weight, making installation easier. According to owner feedback, it works well for light-duty applications such as preventing minor sag on daily drivers. The included shims allow for precise alignment, which is a nice touch. However, the 300 lb capacity is lower than steel alternatives, and some users reported bending when used with heavy loads like lumber or toolboxes.
This kit is best for those with light tailgate use who prioritize easy installation. Skip it if you regularly carry heavy cargo or need maximum durability.
- Lightweight aluminum construction
- Includes shims for fine adjustment
- Bolt-on design for easy installation
Pros: Lightweight and easy to handle; Adjustable with included shims
Cons: Aluminum may bend under heavy loads; Not suitable for heavy-duty use
7. Bully 80003 Anti Sag Gate Kit: Budget Pick
The Bully 80003 is an entry-level anti sag kit that covers the basics at a low price point. Based on owner reviews, it provides moderate improvement in tailgate sag, but the black paint finish is prone to chipping and rust in wet climates. The steel brackets are functional but not as durable as higher-end options. Installation is straightforward, though some users noted that alignment can be tricky.
This kit is suitable for budget-conscious buyers who need a temporary fix or have a truck that sees light use. Those expecting long-term durability or heavy load support should invest in a more premium kit.
- Affordable steel construction
- Simple bolt-on installation
- Compatible with most full-size trucks
Pros: Very budget-friendly; Basic functionality for the price
Cons: Paint finish may rust quickly; Limited adjustability
Frequently Asked Questions
What does an anti sag gate kit do?
An anti sag gate kit reinforces the tailgate hinge area to prevent the tailgate from drooping over time. It typically replaces or reinforces the factory hinge pins and brackets, reducing stress on the tailgate and improving alignment.
Will an anti sag gate kit fit my truck?
Most kits are designed for specific makes and models. Check the manufacturer’s compatibility list before purchasing. Universal kits exist but may require modification. We recommend verifying fitment using your truck’s year, make, and model.
How difficult is installation?
Installation difficulty varies. Bolt-on kits can be installed in 30-60 minutes with basic hand tools. Some kits require drilling or removal of the tailgate. Always read the instructions and watch installation videos if available.
Can an anti sag kit fix a tailgate that already sags?
Yes, in many cases. The kit realigns the tailgate and provides stronger support, reducing or eliminating sag. However, if the tailgate itself is bent or the hinges are severely worn, replacement may be necessary.
Do I need to grease the hinges?
Some kits come with grease fittings for maintenance. Even without them, periodic lubrication of the hinge pins with a silicone-based lubricant can extend the life of the kit and keep it operating smoothly.
Our Verdict
Our top pick is the Dee Zee DZ8780 for its outstanding durability, high load capacity, and excellent corrosion resistance. It is the best all-around choice for most truck owners. For a more budget-friendly option with easy installation, the Rough Country 2575 is an excellent runner-up that delivers reliable performance at a lower price.
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