What Modern Driveline does

Modern Driveline (MDL) is a privately held, Idaho-incorporated specialty automotive parts manufacturer and distributor founded in 1998 by Bruce Couture and headquartered in a 10,000+ sq. ft. facility in Caldwell, Idaho. The company specializes in 5- and 6-speed manual overdrive transmission conversion kits and engineered driveline packages for classic and modern American rear-wheel-drive vehicles spanning Ford, GM, and Mopar platforms from the 1930s to present-day muscle cars, including Fox Body, SN95, and S197 Mustangs, Camaro/Firebird, C3 Corvette, vintage trucks and pro-touring builds.

MDL's product stack centers on TREMEC manual transmissions (T5, TKO, TKX, T56 Magnum, T56 Magnum XL, TR-3650) sourced under its TREMEC Elite Distributor status, one of only 15 such distributorships worldwide, layered with proprietary in-house products including the Stealth Series in-dash hydraulic master cylinder, LF Series hydraulic clutch systems, Superior brand hand-assembled clutches, and the MDL-modified TKX side-shifter. The company packages these into turnkey, vehicle-specific conversion kits that bundle transmission, bellhousing, crossmember, clutch, flywheel, hydraulics, shifter, driveshaft, and wiring harness into a single engineered solution, supplemented by online tire-size and speedometer-gear calculators, installation documentation, and lifetime technical support for package buyers.

MDL generates revenue through direct-to-consumer e-commerce on moderndriveline.com (quote-based pricing, Affirm financing, phone/email consultation), a nationwide authorized dealer network (Find a Dealer / Become a Dealer programs), and in-house transmission rebuilding services for Borg-Warner T5, T45, and T56 units. Customer segments are diversified across individual classic muscle car enthusiasts, modern muscle car owners, racers/pro-touring builders, and custom restoration shops, with no disclosed external funding, parent company, or public listing. The company has accumulated 10,000+ documented installations worldwide across its 28-year operating history and continues to receive industry recognition (SEMA 2019 Best New Engineered Product; SEMA 2025 Runner-Up; PRI 2025 Featured Products Award).

Name

Modern Driveline

Legal name

Modern Driveline, Inc.

Website

https://moderndriveline.com

Company type

Private

Founded year

1998

Operating status

Operating

Headcount range

11–50 employees

Short description

Modern Driveline is a 28-year-old, founder-owned specialty auto parts company in Caldwell, Idaho that engineers and sells 5- and 6-speed manual overdrive transmission conversion kits, proprietary hydraulic clutch systems, and hand-assembled clutches for classic and modern Ford, GM, and Mopar muscle cars, serving enthusiasts, racers, and restoration shops via direct e-commerce and a US dealer network.

Ownership category

akta.pro rank

Product category

Performance Transmission Parts

NAICS

Motor Vehicle Transmission and Power Train Parts Manufacturing (336350), Mechanical Power Transmission Equipment Manufacturing (333613)

SIC

Wholesale-Motor Vehicle Supplies & New Parts (5013)

akta.pro primary industry

Transmission & Transaxle Manufacturing (Manual/Automatic/DCT/CVT) (IMACAHAE)

akta.pro secondary industries

Passenger Vehicle Transmission & Drivetrain Systems Manufacturing (ICE) (IMACAAAG), Brakes, Clutches & Couplings (Electromagnetic Brakes, Torque Limiters) (IMAGACAK), Clutch, Torque Converter & Flywheel Manufacturing (IMACAHAI)

Keywords

• Manual transmission conversions
• Performance drivetrain parts
• Hydraulic clutch systems
• Muscle car transmissions
• TREMEC Elite distributor

Headquarters

HQ city

Caldwell

HQ country

United States

HQ region

North America

Offices2 records

Markets served

GTM type

B2C

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Personnel, Operations, Technology or R&D, Marketing or Sales, Infrastructure

Revenue model

1. Transmission Sales: Sale of Tremec T5, TKX, TKO, T56 Magnum, and T56 Magnum XL 5- and 6-speed manual overdrive transmissions as complete units and in custom-configured packages tailored to specific vehicle applications.
2. Conversion Packages & Kits: Engineered transmission conversion packages including bellhousings, crossmembers, clutches, flywheels, hydraulic clutch kits, shifters, driveshafts, wiring harnesses, and all hardware required for complete 5- and 6-speed swaps. Packages are designed and tailored for specific vehicle makes/models.
3. Parts & Accessories: Individual component sales including bellhousings, clutch sets, master cylinder kits, slave cylinders, shifters, speedometer parts, crossmembers, and driveline parts sold through the MDL e-commerce store.
4. Transmission Service & Rebuilding: Borg-Warner T5 rebuilds, and repairs for Tremec T45, T56, and other transmissions. Also offers a service center at their Caldwell, Idaho facility.
5. Engineering Consultation: Personalized design consultation from engineering staff guiding customers step-by-step through transmission and conversion selection, troubleshooting, and installation support.

Pricing tiers

Go-to-market motion1 record

Distribution channels3 records

Marketing channels7 records

Core offering

Modern Driveline designs, manufactures, and sells complete 5-speed and 6-speed manual overdrive transmission conversion kits and components for Ford, GM, and Mopar vehicles. The product line spans TREMEC transmissions (T5, TKX, TKO, T56 Magnum, T56 Magnum XL, TR-3650), in-house engineered hydraulic clutch systems (Stealth Series, LF Series), Superior brand hand-assembled clutches, bellhousings, crossmembers, flywheels, and shifters. They also offer engineered turnkey conversion packages and provide transmission rebuilding and engineering consultation services.

Product overview

Modern Driveline (MDL) is a Tremec Elite Distributor specializing in complete 5 & 6-speed manual overdrive transmission conversion solutions. The product portfolio centers on TREMEC transmissions (T5, TKX, TKO, T56 Magnum, T56 Magnum XL, TR-3650) paired with complementary installation components including Superior brand clutches, hydraulic clutch systems (Stealth Series, LF Series), crossmembers, bellhousings, flywheels, shifters, and wiring harnesses. MDL offers complete turnkey conversion packages tailored for Ford, GM, Mopar, Cobras, trucks, hot-rods, kit cars, and customs spanning from 1930 to present-day vehicles. The company also provides technical resources including tire size/gear ratio calculators, speedometer calibration tools, and installation instructions. With 10,000+ successful installations worldwide, MDL positions itself as a complete driveline solutions provider rather than a single-product vendor, offering design consultation and lifetime technical support with their conversion packages.

Differentiator

Problem solved

Functional benefit

Products and services

• TREMEC T56 Magnum 6-Speed Transmission Heavy-duty 6-speed manual overdrive transmission capable of handling up to 640 HP (as used in Corvette ZR1). The aftermarket version of the celebrated TR-6060, suitable for Ford, GM, and Mopar applications.
• TREMEC T56 Magnum XL 6-Speed Transmission Extended-length version of the T56 Magnum for modern Mustang applications (2011-current), providing improved gear ratios and compatibility with Getrag MT-82 swap requirements.
• TREMEC TKX 5-Speed Transmission Improved 5-speed overdrive transmission with close-ratio custom shifters. Handles 500-600 HP, featuring durability surpassing Ford's Top Loader four-speed with vastly improved fuel consumption.
• TREMEC TKO 5-Speed Transmission Performance-oriented 5-speed overdrive transmission available in TKO500/600 variants, handling up to 600 lb-ft of torque. Suitable for small-block and big-block Ford applications.
• TREMEC T5 5-Speed Transmission Lightweight 5-speed overdrive transmission introduced in early 1980s, accepting up to 300 lb-ft torque capacity. Features aluminum die-cast housings, advanced synchronizers, and 75 lb dry weight.
• TREMEC TR-3650 Transmission 5-speed overdrive transmission used in Ford Mustang GT and BA Falcon (2001-2010). Features 85mm center distance, integral clutch housing, advanced synchronizers, and 360-390 lb-ft torque capacity.
• Stealth Series Hydraulic Clutch Master Kit In-dash hydraulic master cylinder system designed for specific vehicle applications (1981-1993 Fox Body Mustang, 1967-1969 Camaro/Firebird). Features three master cylinder positions for adjustable pedal feel with zero modification to OEM pedal support.
• LF Series Hydraulic Clutch System Light-foot series hydraulic clutch systems providing modern solution to heavy mechanical Z-bar pedals. Available for Ford, Chevy, and Mopar applications with internal or external slave cylinder options.
• Superior Clutch Kits In-house brand of clutches made with Kevlar or carbon fiber facings, hand-assembled with finest components. Backed by 1-year free-from-defect warranty, available for various spline configurations.
• 5-Speed Transmission Conversion Package Complete turnkey 5-speed overdrive conversion packages for Ford, GM, Mopar, Cobras, trucks, and custom applications. Includes transmission, bellhousing, crossmember, clutch, flywheel, shifter, and all hardware.
• 6-Speed Transmission Conversion Package Complete turnkey 6-speed overdrive conversion packages for various vehicle applications including Fox Body Mustang, SN95, and modern Mustangs. Includes T56 Magnum or Magnum XL with all mounting and connection components.
• Borg-Warner T5 Rebuild Services MDL service center offers T5 rebuilds along with repairs for Tremec T45, T56, and other transmission models at their 10,000+ sq. ft. Idaho facility.

Named customers8 records

Segments4 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

Eight partnerships are on record, tiered core and minor.

• TREMECcoreTechnology or Integration · 1 January 2008MDL has been an authorized TREMEC distributor since 2001 and became one of only 15 TREMEC Elite distributors worldwide in 2008. This elite status provides a direct relationship with the Tremec factory, priority access to current products, deep technical understanding of each transmission model, and the ability to provide comprehensive technical support. MDL services and rebuilds TREMEC transmissions including T5, T45, T56, TKX, and T56 Magnum.
• SEMA (Specialty Equipment Market Association)coreStrategic or Co-development PartnerMDL participates annually in the SEMA Show and has been recognized with SEMA awards (Best New Engineered Product 2019, Runner-Up 2025). MDL features customer builds at SEMA (including SEMA Battle of the Builders entries) and sponsors youth automotive programs at the show.
• Performance Racing Industry (PRI)coreStrategic or Co-development PartnerMDL participates in the annual PRI Show in Indianapolis. In 2025, MDL received a Featured Products Showcase Award for the 94-04 Mustang Stealth Master kit, selected from over 400 products by 12 industry judges.
• V8 Speed & Resto ShopcoreChannel Partner/ Reseller/ DistributorV8 Speed & Resto Shop is an installation partner featured across multiple MDL video series and blog posts. The shop has completed numerous MDL conversion installations documented on V8TV, including 1967 Camaro TKX, 1969 Chevelle TKO-600, C3 Corvette LS swap with 6-speed, and 1969 Camaro T56 Magnum builds.
• CJ Pony PartsminorChannel Partner/ Reseller/ DistributorCJ Pony Parts, one of the oldest and largest Mustang parts retailers (based in Harrisburg, PA, est. 1985), carries and features MDL products. MDL installation content and product features appear on the CJ Pony Parts platform and vice versa.
• Two Guys GarageminorGTM or Marketing PartnerMDL was featured in two episodes of the Two Guys Garage TV show/podcast (episode 232 on drivelines and additional episodes). Brian Fuller and Kevin Byrd installed a Ford Boss engine into a 67 Mustang along with an MDL TREMEC TKO600RR (Road Race) 5-speed transmission.
• V8TVminorGTM or Marketing PartnerV8TV has produced multiple video features on MDL conversion installations including the 'Lou's Change' 1969 Camaro T56 Magnum build and the C3 Corvette LS swap with 6-speed. V8TV content showcases MDL products in action.
• All Girls GarageminorGTM or Marketing PartnerMDL's TKO 5-Speed Conversion Kit was featured on 'All Girls Garage' television show in a 1971 Oldsmobile Cutlass restoration, bringing MDL visibility to a female-focused automotive audience.

Scale indicators6 records

Recent moves7 records

Expansion highlights4 records

Broad incumbents

• TREMEC: TREMEC is the manufacturer of the T5, TKO, TKX, TR-6060/T56 Magnum, and other manual transmissions that MDL distributes and integrates. It is both MDL's core supplier and a broader incumbent whose own distribution and OEM channels overlap with specialist converter demand.
• Year One: Year One is a long-established classic muscle car restoration parts supplier serving the same enthusiasts that MDL targets. Broad incumbent offering exterior, interior, and driveline parts rather than specialized conversion engineering.
• Summit Racing Equipment: Summit Racing is one of the largest U.S. performance aftermarket retailers/distributors and sells Tremec transmissions and clutches alongside many MDL categories. Indirect peer through retail/distribution rather than direct conversion package engineering.
• Holley Performance Products: Holley is a large performance automotive aftermarket platform (carburetors, EFI, driveline, exhaust) that serves overlapping performance/muscle car customers with broader product breadth. A broad incumbent where it competes on individual SKU level rather than full conversion packages.
• Classic Industries: Classic Industries is a major classic GM and Mopar restoration parts retailer/distributor with broad product depth. Adjacent incumbent that overlaps with MDL's customer base on restoration-era Mustangs, Camaros, Chevelles, and similar platforms.

Direct peers

• McLeod Racing: McLeod Racing manufactures performance clutches, bellhousings, and driveline components for muscle car and racing applications. Listed as a brand partner on MDL's website, it is both a collaborator and competing clutch-systems supplier in the same channel.
• Keisler Automotive: Keisler Automotive (Keisler Engineering) manufactures complete Tremec TKO/TKX conversion kits for GM vehicles including Camaro, Chevelle, and Corvette, with bellhousings, crossmembers, and hydraulics. Directly comparable conversion specialist serving overlapping enthusiast segments.
• Centerforce Clutches: Centerforce designs and manufactures performance clutches and clutch kits, including hydraulic conversions for classic American vehicles. It is a direct clutch-systems peer to MDL's Superior brand offering within the muscle car aftermarket.
• Silver Sport Transmissions: Silver Sport Transmissions (under Classic Performance Products) offers direct-fit Tremec transmissions and conversion kits for classic GM muscle cars. Closely competes with MDL in the GM performance transmission swap category.
• American Powertrain: American Powertrain specializes in Tremec conversion kits for GM and Ford vehicles, offering 5- and 6-speed manual transmission swaps and complete driveline packages. It is the closest direct competitor to MDL in the conversion-kit aftermarket.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/channel/UCx4E3x3a2cU0R3yGjbw9Ybw
• Facebookfacebook.com/ModernDriveLine

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Modern Driveline