car speedometer
The New Age of Vintage
Dakota Digital’s HDX Analog-Digital Instrument System
By Rob Fortier | Photography by the Author

I pity those of you over the age of 50 (maybe even younger?!) who don’t have any kids to help you navigate modern computer electronics—without my teenage son, I’d be lost when it comes to many things in this virtual world we live in! That said, I will be the first to acknowledge the vast advancements the performance aftermarket has made in recent years with everything from drivetrain components to instrumentation—especially the latter.

Not so long ago, Dakota Digital was known for primarily just what their name implies: blue LED digital gauges. Today, while Dakota still offers their proprietary instrumentation, they’ve made leaps and bounds in technological advancements, to the point where it’s almost as if they took two steps back instead of forward—and that’s a good thing! Why, you ask? Well, one look at their line of HDX (and the newly released RTX) digital-analog factory-retrofit gauges for the Chevy C10 truck series (the entire line!) and you’d think they’d recreated the stock instrument clusters … that is until you turned the ignition on for the first time and really got an in-depth look at what’s actually behind those beautiful analog gauge faces.

Dakota Digital’s HDX Analog-Digital Instrument System put together
Dakota Digital’s HDX-67C-PU (and their new RTX) series analog digital instrument system for 1967-1972 C10s
Dakota Digital’s HDX-67C-PU (and their new RTX) series analog digital instrument system for 1967-1972 C10s comes “pre-packaged” in this self-contained cluster designed as a factory retrofit—meaning it bolts right in place using the stock or aftermarket gauge bezel with no dash modifications required.
various chords
Included with the complete kit are a universal sending unit pack, all necessary harnesses, and electronic control box. Also shown are the optional shift indicator/light dimmer controller and warning buzzer.
According to Dakota Digital, “Each HDX system allows the user to select independent illumination colors for the gauge readings and needles, as well as the message centers. Calibration and personal settings are manipulated with the built-in, capacitive-touch buttons, or the available Bluetooth app for Apple and Android devices. Each needle hub is black nickel plated spun-aluminum to match the buttons. All HDX instrument systems feature dead-faced indicators (turn signals, high beam, check engine, cruise control, parking brake, plus two user-definable), and a red, settable warning light for each gauge. With our central control box, installation is greatly simplified with vehicle-harness sourced signals and supplied, solid-state sending units connecting cleanly to their respective terminal.”

Literally, Dakota’s HDX system is a true plug-and-play; it bolts right up to your existing OE gauge bezel as well as any aftermarket reproduction—including their own, available separately (which we chose to use). Initial programming/setup is just as straightforward—even more so with that aforementioned teenaged assistant! We’ll show you how easy that initial installation really is … however, as for the more advanced aspects, such as gear shift indicator, and so on, we’ll continue that once we install our brand-new 4L60E from Phoenix Transmissions (with accompanying CompuShift TCU), along with Lokar’s trick Electronic Sport Mode shifter in our yet-to-be-named 1969 C10 project. Stay tuned—plenty more to come!

removing the existing gauges and trim panel
Electrical service work on a car
First and foremost: disconnect your truck’s battery before performing any electrical service work—that includes your stock instrument panel! Once you’ve done that, then proceed with the removal of your existing gauges and trim panel. (FYI: For photographic purposes, we’ve dropped the steering column; it’s not required to remove or install your gauges.)
rolled up chord
Dakota supplies new solid-state sending units intended specifically for their HDX gauges—even if you have “new” sending units already installed on your engine, swap them out for these!
setting up HDX gauges
Mounting plate setup
Jimenez Bros. has installed more HDX systems than they can recall—so many, in fact, that they’ve developed a mounting plate setup for the control boxes/relays to eliminate having to find suitable individual mounting locations under the dash.
wiring up the Controller
With the harnesses already pre-routed from their termination points (engine bay, transmission, and so on), the controller is wired up first …
Sources:
Dakota Digital

(605) 332-6513
www.dakotadigital.com

Jimenez Bros. Air Ride & Rod Shop

(951) 343-5948
www.jimenezbrosairrideandrodshop.com

installing the mounting plate
… then the mounting plate is installed in its respectful spot under the dash—conveniently, right above where our new American Autowire fuse panel will be located.
wire up the gauge cluster
Installation of the dashboard
Next, we preliminarily wired up the gauge cluster just to ensure we had our “+/-” right before we moved onto the initial setup phase.
Speedometer and wires
On screen directions on the dashboard
If you’re like me, instructions rarely make it outside of the box they’re shipped in—but in this case, instructions will make your life much, much easier … especially if you don’t have a teenage son or daughter around to help facilitate!
Bluetooth enabled HDX/RTX systems
If your stubby fingers aren’t capacitive-touch button friendly—that, or you just can’t be bothered with this part—the HDX/RTX systems are Bluetooth enabled, meaning a simple app download on your Apple or Android device will pretty much handle most of the programming setup for you … but you’ll still have to use your fingers!
Completed setup process of dashboard
Once you’ve completed that setup process, you’ll be greeted by a fully illuminated gauge cluster as such. And what a sight it is to behold!
Fully illuminated gauge cluster in green
And if a white display clashes with your truck’s interior—there’s always green … or yellow … or red …

Stay tuned for our follow-up installment when we integrate a custom-built Phoenix Transmissions 4L60E and a Lokar Sport Mode shifter with our new Dakota Digital HDX instrumentation system.

Sources:
Dakota Digital

(605) 332-6513
www.dakotadigital.com

Jimenez Bros. Air Ride & Rod Shop

(951) 343-5948
www.jimenezbrosairrideandrodshop.com