A Completed Customer Build from Dave Sinclair Customs
This custom 2026 GMC Sierra 2500 HD Denali Ultimate was built by Dave Sinclair Customs in St. Louis, Missouri. Finished in Onyx Black, the truck received a 3.5-inch suspension lift, Nitto Trail Grappler tires, 22-inch black GMC wheels and extensive exterior customization.
This particular Sierra HD was completed for one of our customers and has been sold. It is featured here as an example of the truck customization work available through Dave Sinclair Customs.
Our St. Louis customs team works with customers throughout Missouri who want to personalize a GMC truck or SUV with professionally selected wheels, tires, suspension upgrades, paintwork, tint, accessories and exterior appearance packages.
Vehicle: 2026 GMC Sierra 2500 HD Denali Ultimate
Exterior color: Onyx Black
Stock number: LT260364
Build status: Completed customer build — SOLD
What Was Customized on This GMC Sierra 2500 HD?
This customer wanted a lifted GMC Sierra HD with a stronger stance, an all-black appearance and factory components that blended naturally with the finished build.
Suspension, Wheels and Tires
The foundation of this custom Sierra 2500 HD build included:
- 3.5-inch suspension lift
- 22-inch black GMC wheels
- Nitto Trail Grappler tires
- Black lug nuts
- Black center caps
- Four-wheel alignment
The suspension, wheel and tire combination gave the truck a taller and more aggressive profile while maintaining a coordinated appearance throughout the build.
Custom Paint and Exterior Details
Several factory exterior components were painted or refinished to complement the Onyx Black exterior:
- Body-color grille
- Body-color grille border
- Body-color lower front fascia
- Body-color mirror caps
- Body-color door handles
- Body-color wheel-well covers
- Body-color mud guards
- Body-color tow hooks
- Body-color fog-light bezel surrounds
- Body-color rear GMC lettering
- Body-color fender decals
- Body-color front bumper plate
- Gunmetal rear GMC emblem border
- Gunmetal Denali and model badging
- Black brake calipers
- Illuminated front GMC emblem border
These changes reduced contrasting trim and created a more unified black and gunmetal exterior.
Window Tint, Trim and Accessories
The finishing work included:
- Front-window tint matched to the rear windows
- 5% rear-window tint
- 5% rear-windshield tint
- Wrapped running boards
- Wrapped exterior window trim
- Tinted turn indicators
- Tinted wheel-well indicators
- GMC all-weather floor liners
- Puddle lamps
- Retractable bed cover
The retractable bed cover gives the owner a convenient way to cover the cargo box while maintaining a clean, low-profile appearance.
GMC Truck Customization in St. Louis, Missouri
Dave Sinclair Customs provides automotive customization for GMC truck and SUV owners in the St. Louis area and throughout Missouri.
Available customization options may include:
- Suspension lifts and leveling kits
- Custom wheels and tires
- Window tint
- Blackout and chrome-delete treatments
- Body-color exterior components
- Custom emblems and model decals
- Running boards and side steps
- Bed covers
- All-weather accessories
- Lighting and appearance upgrades
Every project begins with the vehicle, the customer’s goals and the way the vehicle will be used. Our team can help plan a coordinated build rather than treating each upgrade as a separate addition.
Available parts and customization options depend on the vehicle, model year, configuration and desired finished appearance.
Can Dave Sinclair Customs Build a Similar Sierra HD?
Yes. Although this exact 2026 GMC Sierra 2500 HD Denali Ultimate has been sold, Dave Sinclair Customs can discuss a similar build for another compatible GMC Sierra HD.
A similar project could include a lift, black wheels, all-terrain or mud-terrain tires, painted exterior components, tinted lighting elements and a retractable bed cover. Your final build can also be adjusted to fit your preferred appearance and intended use.
Our team can help customers customize vehicles such as:
- GMC Sierra 1500
- GMC Sierra 2500 HD
- GMC Sierra 3500 HD
- GMC Canyon
- GMC Yukon
- GMC Yukon XL
Start Your Custom GMC Build
Looking for GMC truck customization in St. Louis or elsewhere in Missouri?
Complete the form below and tell us:
- Which vehicle you own or plan to purchase
- Which upgrades you are considering
- The overall look you want to create
- Your preferred phone number and email address
A member of the Dave Sinclair Customs team will contact you to discuss your vehicle and the next steps for your project.
Frequently Asked Questions
Is this custom GMC Sierra 2500 HD still available?
No. This truck was custom-built for one of our customers and has been sold. It is shown as an example of a completed Dave Sinclair Customs project.
Who customized this GMC Sierra 2500 HD?
The truck was customized by Dave Sinclair Customs in St. Louis, Missouri.
What size lift was installed?
This Sierra 2500 HD received a 3.5-inch suspension lift.
What wheels and tires were used?
The truck was equipped with 22-inch black GMC wheels and Nitto Trail Grappler tires.
Does the truck have a bed cover?
Yes. A retractable bed cover was installed as part of the completed customer build.
Can Dave Sinclair Customs recreate this truck?
Of course! Our team is happy to discuss building a similar Sierra HD using compatible parts and customization options. Exact parts, fitment and availability may differ by vehicle and model year.
Do I need to buy a vehicle before contacting the customs team?
No. You can contact the team while shopping for a vehicle or after purchasing one. We just need to know the year, make, model, and VIN number of your vehicle whenever you contact us.
Does Dave Sinclair Customs serve customers outside St. Louis?
Dave Sinclair Customs is located in St. Louis, but we work with people from all over the country! Our team is happy to explain the out-of-town buying process, logistics, and answer any questions you have.
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