Volk Racing TE37 Large PCD Progressive Model II – Finish Guide

At a Glance

Quick Finish Comparison

Important

What to Know Before You Buy

What Makes the TE37 Large PCD Progressive Special?

The Volk Racing TE37 Large PCD Progressive was engineered specifically for 6-lug platforms. While it retains the legendary forged monoblock construction that made the TE37 famous, this model introduced several truck-focused refinements that set it apart from standard TE37 variants.

Aggressive Concavity

One of the defining features of the 18x9 +0 spec is its bold, aggressive concave face profile. Compared to many modern 6-lug wheels that prioritize load rating over design, the Progressive Model II strikes a careful balance:

• Deep, sculpted spoke curvature: Creates visual depth and a performance-forward aesthetic
• Structural integrity: Engineered to handle the demands of heavier truck and SUV platforms
• True performance-inspired design: Maintains the motorsport DNA that defines the TE37 lineage

Forged Monoblock Construction

Like all genuine Volk Racing wheels, the TE37 Large PCD Progressive is forged from a single block of aluminum using RAYS' proprietary 10,000-ton forging press. This process results in a wheel that is extremely strong yet lightweight — a combination that matters whether you're tackling trails or cruising city streets.

• Single-piece forged aluminum: No welds, no joints — maximum structural integrity
• JWL & VIA compliant: Meets rigorous Japanese safety and quality standards
• Engineered for real-world abuse: Built to handle the stresses of off-road and overland use

For off-road and overland builds, strength matters. For street builds, weight savings matters. The TE37 Large PCD Progressive delivers both — a rare combination in the 6-lug wheel market where most options sacrifice one for the other.

Designed for 6x139.7 Trucks & SUVs

The 6x139.7 bolt pattern makes the Volk Racing TE37 Large PCD Progressive Model II one of the most desirable forged wheel options for the Ram 1500 platform. This specification was purpose-built for full-size trucks that rarely see genuine forged wheel options with this level of motorsport pedigree.

Compatible Vehicles

The 18x9 +0 specification in 6x139.7 PCD fits a wide range of sought-after trucks and SUVs:

The +0 Offset Advantage

The +0 offset on this specification provides a more aggressive stance compared to higher offset OEM wheels. This is a deliberate choice that delivers tangible benefits for truck and SUV builds:

• Wider track appearance: The wheel face sits further outboard, filling the wheel well more aggressively
• Improved presence: Creates a planted, purposeful stance that transforms the vehicle's profile
• Proper fitment with larger tires: Accommodates all-terrain and mud-terrain tires without excessive rubbing on stock suspension

Fitment Considerations

The 18x9 +0 specification is designed to work well on stock and mildly modified trucks, but there are a few things to verify before ordering:

• Tire sizing: This wheel pairs well with 265/70R18 to 285/65R18 tires depending on your platform and lift
• Suspension setup: Lifted vehicles may require additional considerations for fender clearance
• Trimming: Some aggressive tire sizes may require minor trimming or fender modifications

Discontinued – Replaced by the TE37 Large PCD M-Spec

The Volk Racing TE37 Large PCD Progressive Model II was officially discontinued last year and replaced by the newer Volk Racing TE37 Large PCD M-Spec. While the M-Spec introduces updated engineering and refinements, the transition has created a unique opportunity for enthusiasts who prefer the outgoing model's design language.

Why Enthusiasts Prefer the Progressive Model II

While the M-Spec is an excellent wheel in its own right, many enthusiasts — ourselves included — feel that the Progressive Model II has a more traditional TE37 look. This is especially true in the 18x9 +0 specification, where the design differences become most apparent:

• Classic spoke proportions: The Progressive Model II's spoke shape stays truer to the original TE37 formula
• Familiar silhouette: The overall wheel profile is instantly recognizable as a TE37
• Aggressive concavity: The +0 offset spec showcases the concave face design beautifully
• Motorsport heritage: The design cues feel more directly connected to Volk Racing's racing roots

Increasing Rarity

As remaining inventory dries up globally, this version is becoming harder to find — particularly in rarer finishes. The reality of discontinued wheel production is straightforward:

• No new production: RAYS has ceased manufacturing this model entirely
• Limited distribution stock: Only existing inventory in dealer and distributor channels remains
• Finish availability varies: Some colors have already sold through completely
• 18x9 +0 is highly sought: This specific spec is one of the most desirable for the truck/SUV community

Standard Finishes: Bronze & Diamond Dark Gunmetal

Volk Racing offers two standard finishes on the TE37 Large PCD Progressive Model II — finishes that have become iconic across the entire TE37 lineage. These are the most accessible options and represent the quintessential TE37 aesthetic that enthusiasts have loved for decades.

Bronze (BR)

If there's one finish that defines the TE37, it's Bronze. This is the color most associated with Volk Racing's motorsport heritage, and for good reason — it's been on podium-winning race cars and legendary street builds alike since the TE37's inception.

• Finish type: Solid painted finish with clear coat
• Appearance: Warm, golden-bronze tone with subtle metallic depth
• Character: Shifts slightly warmer or cooler depending on lighting conditions
• Best paired with: White, black, silver, and earth-tone vehicles
• Maintenance: Standard wheel care — easy to keep clean

Bronze TE37s have graced everything from time attack builds to show cars to daily drivers. On trucks and SUVs, the warm bronze tone creates a striking contrast against most body colors and pairs exceptionally well with the rugged aesthetic of overland and off-road builds.

Diamond Dark Gunmetal (MM)

For those who want something more subdued than Bronze but with more visual interest than standard gunmetal, Diamond Dark Gunmetal delivers. This finish features a deep, dark base with a diamond-cut spoke face that catches light beautifully.

• Finish type: Diamond-cut face with dark gunmetal base
• Appearance: Deep charcoal with machined spoke highlights
• Character: Two-tone effect — darker in shade, sparkles in direct light
• Best paired with: Silver, white, black, and darker vehicle colors
• Maintenance: Diamond-cut faces require careful cleaning to avoid scratches

The Diamond Dark Gunmetal finish is ideal for builds where you want the wheels to complement rather than dominate. It's sophisticated, modern, and versatile — working equally well on blacked-out builds and factory-colored vehicles.

Premium Finishes: The Full Lineup

Beyond the standard Bronze and Diamond Dark Gunmetal options, Volk Racing offers a range of premium finishes on the TE37 Large PCD Progressive Model II. These finishes carry an upcharge but deliver unique aesthetics that set your build apart. With the model discontinued, availability of these rarer finishes is extremely limited.

Black (BK)

The premium and bold option in the lineup. Black is Volk Racing's murdered-out finish — a deep, true black.

• Finish type: Glossy Black
• Appearance: Deep, uniform black across entire wheel
• Character: Understated aggression — engravings are accentuated
• Best paired with: Any vehicle color — particularly striking on white, silver, and bright colors
• Maintenance: Requires regular cleaning to maintain that piano black appearance

Mag Blue (BL)

One of Volk Racing's most distinctive and sought-after colors. Mag Blue is a vibrant, eye-catching blue that makes an unmistakable statement. This finish is for enthusiasts who want their wheels to be a focal point of the build.

• Finish type: Solid painted finish with clear coat
• Appearance: Bright, saturated blue with excellent depth
• Character: Bold and unapologetic — a true head-turner
• Best paired with: White, silver, black, and contrasting vehicle colors
• Maintenance: Standard wheel care — shows well when clean

Dark Gunmetal (DG)

A refined alternative to black, Dark Gunmetal offers a dark anthracite tone with subtle metallic flake. It's one shade lighter than Diamond Dark Gunmetal, and more classically gunmetal.

• Finish type: Metallic gunmetal with clear coat
• Appearance: Grey with visible metallic particles
• Character: Sophisticated and understated with hidden depth
• Best paired with: Silver, white, gray, and darker vehicle tones
• Maintenance: Forgiving finish that hides brake dust well

Diamond Silver (DS)

A refined, high-brilliance metallic silver finish that emphasizes clarity and precision. Its fine metallic flake delivers a crisp, jewel-like sparkle in direct light, while maintaining a sophisticated tone in shaded conditions.

• Finish type: Metallic silver with clear coat
• Appearance: Silver with visible metallic particles
• Character: Bright and vivid, enhancing the sharp edges and details of the TE37 design
• Best paired with: Monochromatic builds and bold, high-contrast setups
• Maintenance: Standard wheel care — shows well when clean

Matte Black (MB)

A dark and stealthy finish, ideal for rugged builds.

• Finish type: Matte black with clear coat
• Appearance: Smooth with very little reflective properties
• Character: Stealthy nature accentuates machining details
• Best paired with: Off-road style builds
• Maintenance: Standard wheel care — hides brake dust well

Diamond Black (DB)

Rich, lighter black with metallic, shimmery pigments and highly glossy.

• Finish type: Deep, gloss-forward black finish infused with ultra-fine metallic flake
• Appearance: More dynamic than standard Black and darker than Diamond Dark Gunmetal
• Character: Accentuates the sharp edges and sculpted concavity of the TE37 design
• Best paired with: Complements both aggressive off-road builds and clean street-focused truck and SUV setups
• Maintenance: Standard wheel care — shows well when clean

Shining Light Metal (SI)

Luminous, high-polish metallic silver that delivers exceptional brilliance and depth.

• Finish type: Ultra-fine metallic composition creates a clean, liquid-like sheen in direct sunlight
• Appearance: Subtle tonal shifts in softer lighting
• Character: Brighter and more dynamic than traditional silver finishes
• Best paired with: Premium, modern finish pairs effortlessly with monochromatic and high-contrast SUV builds
• Maintenance: Standard wheel care — shows well when clean

Shining Black Metal (HM)

Deep, gloss-rich metallic black finish with refined brilliance and layered depth.

• Finish type: In direct light, its fine metallic flake subtly emerges to create a dimensional shimmer
• Appearance: Dark, liquid-like black with sleek, premium presence in lower light
• Character: Darker and more dramatic than gunmetal yet more dynamic than standard gloss black
• Best paired with: Owners seeking both stealth and sophistication on their trucks and SUVs
• Maintenance: Standard wheel care — shows well when clean

Complete Finish Comparison

Here's a side-by-side breakdown of all available finishes to help you decide:

Why Buy Now & Final Thoughts

The Volk Racing TE37 Large PCD Progressive Model II represents a rare opportunity for truck and SUV enthusiasts: legendary Japanese engineering, a discontinued model with dwindling supply, and a spec perfectly suited to today's most popular platforms.

The Case for Acting Now

We're not in the business of artificial urgency — but the reality of discontinued wheel production is straightforward. Here's why timing matters:

• Production has ended: RAYS will not manufacture more Progressive Model II wheels. What exists in the global supply chain is all that remains.
• 18x9 +0 is highly desirable: This specific spec is one of the most sought-after for trucks and SUVs, meaning inventory moves quickly.
• Premium finishes are disappearing: Rarer colors like Mag Blue and Pressed Double Black are already difficult to source.
• Secondary market premiums: Once new stock is exhausted, expect significant price increases on the used market.
• No direct replacement: While the M-Spec exists, it has a different aesthetic — if you prefer the classic TE37 look, this is your wheel.

Who This Wheel Is For

The TE37 Large PCD Progressive Model II in 18x9 +0 is the right choice if you:

• Own a 6x139.7 Ram: Ram 1500 (2019+) or Ram 1500 TRX (2021–2025)
• Value lightweight construction: You understand the performance benefits of reducing unsprung weight
• Appreciate motorsport heritage: The TE37 name carries decades of racing pedigree
• Want Japanese quality: RAYS' engineering and quality control are second to none
• Prefer the classic TE37 aesthetic: You want the iconic look over the newer M-Spec design
• Build for the long term: You're creating a truck or SUV that you'll keep for years

What to Expect

When you install a set of TE37 Large PCD Progressive Model II wheels, here's what changes:

Final Thoughts

The TE37 is more than a wheel — it's a statement about what you value in your build. It says you care about engineering over marketing, performance over aesthetics (though you get both), and quality over compromise. The Large PCD Progressive Model II brought that ethos to the truck and SUV world, and its discontinuation marks the end of an era.

We're enthusiasts first. We stock these wheels because we believe in them — because we'd run them on our own trucks. The 18x9 +0 specification in 6x139.7 is, in our opinion, one of the best wheel options available for the Ram 1500 platform. The combination of lightweight forged construction, perfect fitment, and timeless design is simply unmatched.

If you've been considering a set, now is the time. Check our current inventory below, and if you have any questions about fitment for your specific vehicle, our team is here to help.

Common Questions

Frequently Asked Questions