Transmission & Drivetrain - �㽶��Ƶֱ�� is the Tuner's Source for Modified Car Culture since 1999

Eaton to Showcase GM and Jeep ELocker and Detroit Trutrac Differentials at SEMA 2024

2024-10-29T20:19:42+00:00

Eaton’s Mobility Group is rolling out two new aftermarket differentials for diesel-powered GM trucks and Jeep off-road builds, designed to deliver serious traction upgrades. The new Detroit Truetrac 31-spline differential fits GM’s 11.5-inch rear axle on 2020+ 2500HD Silverado and Sierra models, bringing extra stability and grip for heavy-duty towing or demanding terrain. For Jeep fans, the 35-spline ELocker offers enhanced durability and torque control, a perfect match for 2018 and older Jeep models with Dana 44 axles, including Wrangler JK, TJ, LJ, and CJ variants.

These new differentials will debut at SEMA 2024, giving enthusiasts a first look at Eaton’s latest innovations. The Detroit Truetrac delivers smooth, automatic, limited-slip functionality using helical gears, staying out of the way during normal driving but seamlessly locking up when the traction challenge ramps up. For those looking for on-the-fly control, the ELocker shifts from open to fully locked with a dash switch, ensuring drivers get instant grip for tough climbs and technical obstacles.

Backed by years of refining their differential portfolio, Eaton’s new additions showcase the brand’s commitment to performance-driven upgrades for popular North American vehicles. Both units will be available from Eaton’s U.S. distribution centers starting late Q1 2025, ready to elevate traction and durability for work and adventure alike.

ACT Mod-Twin Clutch for LS1/LS2/LS3/LS6/LS7

2024-08-23T17:06:47+00:00

Advanced Clutch Technology (ACT) introduces the 10.5-inch Mod-Twin Clutch Kits, specifically engineered for the LS1, LS2, LS3, LS6, and LS7 engines found in vehicles like the Corvette, Camaro, Firebird, and GTO. These kits offer a modular hub system, allowing drivers to choose between spring or solid hubs and either Street or 6-Puck race discs, providing tailored performance to suit different driving styles. The single Mono-Drive hub reduces wear on the input shaft, ensuring consistent and clean clutch release over time. The forged aluminum cover further enhances pedal feel, delivering a more responsive and engaging driving experience.

Designed for versatility, the Mod-Twin clutch kits cater to both street and racing applications. With torque capacities ranging from 1,169 FT-LB for daily driving setups to 1,496 FT-LB for high-performance builds, these kits are ready for superchargers, turbochargers, and nitrous. Available in various configurations, including the G13 Kit with a Prolite flywheel and the G14 Kit with a Streetlite flywheel, the Mod-Twin kits are built for easy installation and compatibility with factory or aftermarket components, making them a solid choice for enthusiasts looking to upgrade their LS-powered machines.

For more information, visit AdvancedClutch.com

Direct fits

Chevrolet:

Camaro SS (2010-2015) - 6.2L (LS3), 6-Speed
Camaro Z/28 (2014-2015) - 7.0L (LS7), 6-Speed
Camaro Z28 / Camaro Z28 SS (1998-2002) - 5.7L (LS1), 6-Speed
Corvette (C5) (1997-2004) - 5.7L (LS1), 6-Speed
Corvette Z06 (C5) (2001-2004) - 5.7L (LS6), 6-Speed
Corvette (C6) (2005-2007) - 6.0L (LS2), 6-Speed
Corvette (C6) (2008-2013) - 6.2L (LS3), 6-Speed
Corvette Z06 (C6) (2006-2013) - 7.0L (LS7), 6-Speed

Pontiac:

Firebird Formula / Firebird Trans Am (1998-2002) - 5.7L (LS1), 6-Speed
GTO (2004) - 5.7L (LS1), 6-Speed
GTO (2005-2006) - 6.0L (LS2), 6-Speed

GrimmSpeed Pitch Stop Mount

2024-06-21T16:50:36+00:00

When manufacturers design OEM chassis mounts, the primary focus often lies on minimizing noise, vibrations, and harshness (NVH), as well as keeping costs low. For those seeking to boost their vehicle's performance, this presents a significant opportunity. GrimmSpeed’s latest offering, the Pitch Stop Mount, is engineered to enhance the driving experience by providing a firmer, more connected feel to your drivetrain. This improvement translates to more predictable shifting and increased confidence during spirited driving.

At the heart of this upgrade are 75A durometer polyurethane bushings. These bushings ensure that the transmission remains stable under high torque conditions without introducing excessive drivetrain noise and vibration to the chassis. Designed to fit seamlessly with almost all AWD Subaru manual transmission setups, this part retains the OEM fitment. A minor difference exists between the 5-speed and 6-speed models, but it's easily addressed with the included 5-Speed Adapter Spacer, which fits between the stainless steel bracket and the transmission cross member.

FITMENTS:
2004-21 Subaru STI (6MT)
2002-14 Subaru WRX (5MT)*
2015-24 Subaru WRX (6MT)*
2004-08 Subaru Forester (5MT)*
2005-09 Subaru Legacy GT (5MT/6MT)*
2005-09 Subaru Outback XT (5MT)*
1993-22 Subaru Impreza (6MT)*

*Not compatible with 4/5 Speed Automatic or CVT Models

For more information, visit GrimmSpeed.com

ACT Mod-Twin Clutch Kits for C7 Corvettes

2024-05-29T16:11:57+00:00

Advanced Clutch Technology (ACT) releases a full range of 10.5-inch Mod-Twin Style Clutch Kits for the 2014-2019 C7 Corvette and 2015-2019 C7 Corvette Z06. This Mod-Twin is a revolutionary performance breakthrough, resulting in an ultra-durable, customer-serviceable, long-lasting clutch with extremely high torque capacity, without the trade-offs often associated with a twin disc clutch.

Innovative Mod-Twin Design
The 10.5-inch Mod-Twin clutch kit stands out with its modular hub system, allowing drivers to choose between spring or solid hubs and select from Street or 6-Puck race discs. This customization ensures the clutch system meets the specific needs and preferences of each driver.

Mono-Drive Hub Efficiency
ACT's unique mono-drive hub design offers a significant advantage over traditional dual-hub systems. With an inch and a quarter of solid engagement on the input shaft, this design ensures efficient power transfer and improved reliability.

Forged Aluminum Cover
The forged aluminum cover is a key feature of the Mod-Twin clutch kits, enhancing pedal feel and delivering a superior driving experience. This thoughtful engineering translates to better performance and driver satisfaction.

Kit Options for Different Driving Styles
ACT offers two distinct kit options to cater to different driving styles:

T1 Kit: Provides an effortlessly light pedal feel, ideal for daily driving and street use.
T2 Kit: Offers a performance-oriented experience with slightly increased pedal resistance, perfect for those seeking a more engaged driving experience.

Unmatched Torque Capacity
Engineered to handle from 986 up to 1,496 lb-ft of torque, these clutch kits are built to accommodate various power-boosting modifications, including superchargers, turbochargers, and nitrous systems. Whether you're looking to enhance your Corvette's performance on the street or the track, the Mod-Twin clutch kits are up to the task.

ACT Releases Mod-Twin Clutch Kits for R32/R33 Skylines

2024-05-17T17:39:57+00:00

If you’re an owner of a 1993-1994 R32 or a 1995-1998 R33 Nissan Skyline GT-R, get ready for an upgrade we've been waiting to announce since we first talked about it with ACT two years ago. Advanced Clutch Technology (ACT) has just launched a full range of 225mm Mod-Twin Pull-Type Clutch Kits designed specifically for these iconic Skyline models. These kits are designed to offer durability, ease of maintenance, and impressive torque capacity without the usual drawbacks of twin-disc clutches.

The 225mm Mod-Twin clutch from ACT brings a modular approach to clutch design. You can choose between spring or solid hubs and Street or 6-Puck race discs to match your driving style and needs. The continuous single hub spline, known as the Mono-Drive Hub, minimizes wear on the input shaft, ensuring smooth and consistent clutch release every time. With a forged aluminum cover, drivers will enjoy a refined pedal feel that enhances the driving experience, providing both comfort and performance. ACT’s patented Monoloc system prevents the release bearing from disconnecting, adding an extra layer of reliability to your clutch setup.

The pedal feel can be tailored to your preference, with T1 offering a very light pedal, T2 a slightly firmer feel, and T3 just above stock. Depending on the option you choose, the Mod-Twin can handle from 700 ft-lbs to a massive 1340 ft-lbs of torque. This makes it ready for any power upgrades you’re planning. ACT’s 225mm Mod-Twin Pull-Type Clutch Kits are designed to bring out the best in your R32 or R33 GT-R. Whether you’re hitting the track or cruising the streets, this clutch kit promises a blend of performance and reliability that’s hard to beat.

For more information, visit AdvancedClutch.com

American Powertrain ProTwin Disc Clutch for GM, Ford, Mopar

2024-04-03T17:01:59+00:00

American Powertrain now offers a high- performance twin disc clutch designed for optimal performance and affordability. The ProTwin Clutch kit includes a billet steel flywheel, pressure plate, two drive discs, floater, flywheel crank bolts, pilot bearing and alignment tool. Each clutch kit comes fully balanced and features an impressive 1100 ft/lbs of torque holding capacity for a higher level of performance for street or strip. Designed for quiet operation with no noisy floater rattle and a smooth and comfortable pedal operation feel, the ProTwin clutch will make driving and shifting more fun. Manufactured in the USA with a superior steel gauge and carbon-based friction material for long-lasting wear, the ProTwin Clutch by American Powertrain is a complete kit and includes ARP hardware for installation.

Matt Graves, American Powertrain Marketing and Sales Director says, “We’ve thought about introducing our own performance twin disc clutch for some time. In terms of performance, this is a quality designed and engineered product that won’t cost thousands of dollars. Now with the increased power levels of modern engines, you don’t have to drive around with a heavy clutch that feels like an on and off switch. This new clutch offers tons of torque capacity with the feel of a lighter single disc clutch. No more having to compromise comfort with increased power. We’re very happy with the result and we know our customers will feel like they got their money’s worth.”

For more information about American Powertrain’s new ProTwin Disc Clutch visit AmericanPowertrain.com.

ACT Unveils Push-Type Mod-Twin for Subaru WRX

2024-01-23T17:34:05+00:00

Advanced Clutch Technology (ACT) announced the launch of its new 225 Mod-Twin Clutch Kits (Push-Type) specifically designed for the Subaru WRX. This innovative offering marks yet another leap in clutch technology, promising ultra-durability, customer-serviceability, and long-lasting performance without the usual compromises associated with twin-disc clutches.

Like the Mod-Twin Pull-Type kits before it, the newly unveiled clutch system addresses the limitations of the factory single 240mm clutch, particularly its inability to handle high power efficiently. ACT's Mod-Twin 225 features a Mono Drive modular hub system, a forged aluminum cover, and a Streetlite flywheel. The design ensures a light pedal feel for T1 and a slightly firmer experience for T2, catering to different driving preferences and conditions. The clutch is engineered to manage higher power levels beyond what the original equipment (OE) transmission can handle, with almost identical internals to the current pull-type STI version.

ACT takes pride in the Mod-Twin 225's versatility and robustness. The Street Kits offer an excellent driving feel and drivability, capable of handling up to 800 lb-ft of torque, making them ideal for daily use. For the more competitive spirits, the HD and XT Race kits are designed to withstand the rigors of drag, road, or rally racing, delivering exceptional clutch life and resilience at torque levels as high as 910 lb-ft.

One of the standout features of the Mod-Twin 225 is its modular design, which allows for up to 8 different configurations. Users can choose from two different clamp loads, alternate friction plates, and opt between a sprung or rigid Mono-Drive hub. This level of customization ensures that drivers can tailor their clutch system to their specific performance needs and driving style.

Installation is made straightforward with the kit's adherence to the factory push-type design. Each kit includes a Chromoly XACT Streetlite Flywheel, clutch hardware, an improved release bearing, and an alignment tool, ensuring a smooth and efficient setup process.

ACT has been a prominent figure in the clutch manufacturing industry for over 30 years, delivering maximum holding power through engineering advancements and high-quality, new components. ACT's dedication to innovation and quality is evident in its extensive product line, catering to a wide range of vehicles from domestic to import, European, and off-road markets.

With the release of the Mod-Twin 225 Clutch Kits, ACT continues to redefine standards, offering Subaru WRX owners a robust, efficient, and versatile clutch solution that promises to elevate their driving experience to new heights. For more information, performance car enthusiasts are encouraged to visit https://www.advancedclutch.com.