Engineering a Billet Tailgate Anchor System for the 4G Tacoma

[GoldenCoastOverlanders]

Hey everyone,
Like a lot of you, we’ve been watching the tailgate theft issue on the 4th Gens. There are already some great, affordable hose-clamp style fixes out there that definitely get the job done on a budget.

But as an engineering studio based in California, we wanted to design a solution specifically for the guys who want a premium, OEM+ aesthetic to match the fit and finish of their rigs like the TRD Pros and Trailhunters.

We’ve spent the last few weeks prototyping a Bespoke Tailgate Anchor System. We are machining these in-house out of solid 6061-T6 billet aluminum, finishing them for a brushed look, and pairing them with 18-8 stainless steel hardware and a German-engineered Abus lock.

The goal wasn't to make the cheapest option; the goal was to engineer the most comprehensive, cleanest-looking piece of industrial hardware possible for this platform.

What you see in the photos is the freshly machined raw billet. We are currently waiting on our bulk shipment of Abus locks to arrive at the studio and finalizing the stainless hardware. Once everything lands, we’ll drop the final photos of the complete kit installed.

In the meantime, we are wrapping up the final prototype test-fitting and getting ready to dial in the machines for Batch 001. Because we control the entire process in-house and prioritize QC over mass production, we’ll only be cutting limited quantities when we launch.

If anyone is into this kind of industrial-strength equipment, we opened up a waitlist on our site so you can secure a spot when V1 officially drops.

V1 Waitlist: goldencoastoverlanders.com

Let us know what you guys think of the raw aluminum prototypes! We'll keep sharing behind-the-scenes updates as we get closer to cutting the final batch.

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[FinallyErik]

What tailgate theft issue for the 4th gen? I haven’t seen a single post on it.

And what happened to companies not using 7075 anymore. 6061 is soft

 

[Will721]

What tailgate theft issue for the 4th gen? I haven’t seen a single post on it.

And what happened to companies not using 7075 anymore. 6061 is soft

It's covered here from time to time. Usually because someone bought the cali raised stainless bracket.

It's not necessarily a theft issue with 4th gens specifically, it's common on all newer vehicles. Especially in large cities like Chicago. Oem tailgates, especially already color matched pull a premium in collision repair. They're also easy targets because they are designed for easy removal for loading. The newer the truck, the more desirable the tailgate. Especially on new generations as availability outside the oem is at its lowest. It's why most tailgates these days lock.

But these various hinge covers are for when the tailgate isn't locked. Like if you forget, or are using the truck with the tailgate down to haul certain cargo. Just as a deterent of course.


I already have the caliraised personally, but this one also looks very nice. Billet is hot these days, especially if it comes in anodized red which seems to be extremely popular with Toyota guys.

 

[FinallyErik]

It's covered here from time to time. Usually because someone bought the cali raised stainless bracket.

It's not necessarily a theft issue with 4th gens specifically, it's common on all newer vehicles. Especially in large cities like Chicago. Oem tailgates, especially already color matched pull a premium in collision repair. They're also easy targets because they are designed for easy removal for loading. The newer the truck, the more desirable the tailgate. Especially on new generations as availability outside the oem is at its lowest. It's why most tailgates these days lock.

But these various hinge covers are for when the tailgate isn't locked. Like if you forget, or are using the truck with the tailgate down to haul certain cargo. Just as a deterent of course.


I already have the caliraised personally, but this one also looks very nice. Billet is hot these days, especially if it comes in anodized red which seems to be extremely popular with Toyota guys.

I think a decent amount of people bought the CR version before realizing the 4th gen tailgate is not easily stolen. I definitely agree with you on red anodization lol. Just odd for a company to start from scratch and this be their first produced product. It’s basically a nonissue save for the specific circumstances you mentioned

 

[cmillls45]

Sorry I’m sure this has been talked about earlier, but is this only for manual tailgates? Are the powered ones harder to steal?

 

[GoldenCoastOverlanders]

What tailgate theft issue for the 4th gen? I haven’t seen a single post on it.

And what happened to companies not using 7075 anymore. 6061 is soft

@FinallyErik Appreciate the questions! Valid points to bring up, especially as the aftermarket is just starting to spin up for the N400 platform.

Regarding the 6061 vs. 7075 debate: You are entirely correct that 7075 has a higher yield strength. However, for an exterior, non-structural security component, raw tensile strength isn't the primary engineering constraint—corrosion resistance is. 7075 contains a much higher zinc content, which gives it that extreme strength but makes it significantly more susceptible to galvanic corrosion and environmental degradation. 6061-T6 provides more than enough yield strength to easily defeat a prybar/chisel attack, while offering far superior corrosion resistance against rain, snow, and road salt over the life of the truck.

As for the theft issue, you're right that it hasn't flooded the forums entirely yet. But being based out of downtown Los Angeles, we are already seeing it hit the local 4th Gen community hard. (Shoutout to @Will721 for hitting the nail on the head regarding the massive collision repair demand).

To answer @cmillls45's question at the same time, we are actually seeing thieves bypass both the manual and powered factory locks using two main methods out here:

1. Physical Bypass: Thieves are simply breaking the plastic tailgate handle assembly to reach in and manually actuate the release rods. Because they only care about selling the metal tailgate shell to body shops, they don't care if they completely destroy the plastic handle components in the process.
2. Electronic Bypass (Powered Tailgates): Thieves are reaching up underneath the rear of the truck, accessing the exposed tailgate wire harness, and jumping the lock actuator leads with a portable battery to electronically pop the lock.

Ultimately, we just wanted to machine a zero-compromise, billet failsafe for guys living in high-theft areas or for those who haul cargo with the tailgate down. Appreciate you guys keeping the discussion going and looking out for the community!

 

[GoldenCoastOverlanders]

It's covered here from time to time. Usually because someone bought the cali raised stainless bracket.

It's not necessarily a theft issue with 4th gens specifically, it's common on all newer vehicles. Especially in large cities like Chicago. Oem tailgates, especially already color matched pull a premium in collision repair. They're also easy targets because they are designed for easy removal for loading. The newer the truck, the more desirable the tailgate. Especially on new generations as availability outside the oem is at its lowest. It's why most tailgates these days lock.

But these various hinge covers are for when the tailgate isn't locked. Like if you forget, or are using the truck with the tailgate down to haul certain cargo. Just as a deterent of course.


I already have the caliraised personally, but this one also looks very nice. Billet is hot these days, especially if it comes in anodized red which seems to be extremely popular with Toyota guys.

Spot on with the collision repair breakdown earlier. It's crazy what a new color-matched OEM shell is going for right now.

Really appreciate the kind words on the billet look too! The red anodized idea is a solid call—TRD guys definitely love that pop of color. Since we are a brand new studio, we are keeping Batch 001 strictly to a single brushed machined finish just to ensure our quality control and tolerances are 100% dialed in before we introduce too many variables.

Down the road once we get this initial launch under our belt, we are definitely looking at experimenting with some custom Cerakote colorways. Appreciate you chiming in man!

 

[GoldenCoastOverlanders]

Sorry I’m sure this has been talked about earlier, but is this only for manual tailgates? Are the powered ones harder to steal?

Unfortunately, the powered ones are still a huge target. Thieves have figured out how to bypass the electronic lock by getting under the rear bumper, finding the tailgate harness, and jumping the wires with a portable battery. It triggers the actuator and pops the lock instantly.

Having a physical mechanical lock like this billet system is really the only way to stop that specific electronic bypass method.

 

[FinallyErik]

@FinallyErik Appreciate the questions! Valid points to bring up, especially as the aftermarket is just starting to spin up for the N400 platform.

Regarding the 6061 vs. 7075 debate: You are entirely correct that 7075 has a higher yield strength. However, for an exterior, non-structural security component, raw tensile strength isn't the primary engineering constraint—corrosion resistance is. 7075 contains a much higher zinc content, which gives it that extreme strength but makes it significantly more susceptible to galvanic corrosion and environmental degradation. 6061-T6 provides more than enough yield strength to easily defeat a prybar/chisel attack, while offering far superior corrosion resistance against rain, snow, and road salt over the life of the truck.

As for the theft issue, you're right that it hasn't flooded the forums entirely yet. But being based out of downtown Los Angeles, we are already seeing it hit the local 4th Gen community hard. (Shoutout to @Will721 for hitting the nail on the head regarding the massive collision repair demand).

To answer @cmillls45's question at the same time, we are actually seeing thieves bypass both the manual and powered factory locks using two main methods out here:

1. Physical Bypass: Thieves are simply breaking the plastic tailgate handle assembly to reach in and manually actuate the release rods. Because they only care about selling the metal tailgate shell to body shops, they don't care if they completely destroy the plastic handle components in the process.
2. Electronic Bypass (Powered Tailgates): Thieves are reaching up underneath the rear of the truck, accessing the exposed tailgate wire harness, and jumping the lock actuator leads with a portable battery to electronically pop the lock.

Ultimately, we just wanted to machine a zero-compromise, billet failsafe for guys living in high-theft areas or for those who haul cargo with the tailgate down. Appreciate you guys keeping the discussion going and looking out for the community!

Interesting. I haven’t seen a single post on it across multiple forums.

Anodizing/cerakote will negate the minor zinc issues with 7075.

What’s the price?

 

[GoldenCoastOverlanders]

Interesting. I haven’t seen a single post on it across multiple forums.

Anodizing/cerakote will negate the minor zinc issues with 7075.

What’s the price?

@FinallyErik You're definitely right that a quality Cerakote or Type III hardcoat adds a great barrier to 7075! The engineering issue we ran into is that the tailgate gap is a high-impact zone. Gear, lumber, and rocks are constantly being dragged across it. Once a surface coating inevitably gets scratched or chipped from heavy truck use, that underlying 7075 is exposed to the elements and galvanic corrosion starts. Starting with a 6061-T6 base ensures that even when the part takes a physical beating, the core material won't degrade.

As for the thefts, count yourself lucky it hasn't hit your local circles yet! We're just trying to build a solution to stay ahead of the curve out here in SoCal.

To answer your question on price, MSRP for Batch 001 will be $185. We totally acknowledge there are cheaper basic bent-metal brackets on the market, and those are great for a quick budget fix! We just wanted to machine a zero-compromise, premium option. That price includes the billet anchor, the German-engineered Abus lock, the stainless tamper-proof hardware, and the matching tamper-proof taillight bolts so thieves can't bypass the system. We wanted to build a true "one-and-done" security system.

 

[FinallyErik]

@FinallyErik You're definitely right that a quality Cerakote or Type III hardcoat adds a great barrier to 7075! The engineering issue we ran into is that the tailgate gap is a high-impact zone. Gear, lumber, and rocks are constantly being dragged across it. Once a surface coating inevitably gets scratched or chipped from heavy truck use, that underlying 7075 is exposed to the elements and galvanic corrosion starts. Starting with a 6061-T6 base ensures that even when the part takes a physical beating, the core material won't degrade.

As for the thefts, count yourself lucky it hasn't hit your local circles yet! We're just trying to build a solution to stay ahead of the curve out here in SoCal.

To answer your question on price, MSRP for Batch 001 will be $185. We totally acknowledge there are cheaper basic bent-metal brackets on the market, and those are great for a quick budget fix! We just wanted to machine a zero-compromise, premium option. That price includes the billet anchor, the German-engineered Abus lock, the stainless tamper-proof hardware, and the matching tamper-proof taillight bolts so thieves can't bypass the system. We wanted to build a true "one-and-done" security system.

In theory a proper cerakote is 9H rated which means ain’t nothing scratching it but I get what you mean. Plus it’s cheaper and easier to work 6061

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