South Bend G56-OK-HD Heavy Duty Clutch Kit With Hydraulic Assembly

PART# G56-OK-HD | SKU SBG56-OK-HD
★★★★★ ★★★★★ 5.0 (7 Reviews)

Vehicle Fitment For:
2005.5-2018 Dodge Ram with 5.9L/6.7L Cummins Engine with 6-Speed G56 Trans. (425 hp, 900 ft. lbs.)

See full application list below
$1,421.66

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Description

Upgrade your Dodge Ram 5.9L/6.7L diesel with the South Bend G56-OK-HD Heavy Duty Clutch Kit With Hydraulic Assembly. Designed for the G-56 6-speed transmission, it's perfect for high-performance demands. Experience a smoother transition and enhanced performance with an innovative sprung hub design and modified pressure plate for increased clamping force without extra pedal effort. Each kit includes a clutch, pressure plate, and flywheel as well as a new throw-out bearing, pilot bushing, and an alignment tool. Ideal for automotive enthusiasts and professional drivers alike, this clutch kit is the ultimate upgrade for durability and performance. In addition, this upgraded kit includes a new South Bend Hydraulic Assembly.

Organic Friction Material: Organic clutch material is a top choice for drivers seeking smooth, reliable performance for everyday use. Made from a blend of woven organic fibers and resin compounds, it offers excellent friction stability, making it ideal for street driving where comfort and longevity are priorities. Its consistent engagement and reduced noise make it particularly suited for daily drivers, light towing, and moderate performance applications where clutch feel matters. Designed to handle moderate torque loads, organic clutch discs excel in standard driving conditions but may wear faster under extreme stress compared to performance-based materials.

Heavy-Duty Design: This South Bend clutch is designed for long-lasting durability in demanding driving conditions. Built with heavy-duty materials, it offers excellent heat resistance and minimal wear over time. This clutch provides a moderate pedal feel while offering superior wear resistance compared to standard designs. Though slightly stiffer than a daily driver clutch, the enhanced longevity makes it a preferred choice for vehicles regularly subjected to heavy loads and extended use.

Sprung Hub Style: The sprung hub clutch is a versatile design focused on balancing performance with drivability. It features a series of dampening springs integrated into the hub, which help absorb vibrations and reduce shock during clutch engagement. By minimizing shock transfer, the sprung hub clutch prolongs the life of other drivetrain components, making it a reliable option for vehicles needing both comfort and moderate power handling. While slightly less direct in power transfer than a solid hub, it offers a superior driving experience for most street and light performance applications.

Full Face Disc Style: The full face clutch disc is designed for smooth engagement, even wear, and maximum surface contact with the pressure plate and flywheel. Covering the entire friction surface, this design provides excellent power transfer, making it ideal for daily drivers, light towing, and vehicles where comfort and longevity are top priorities. The increased surface area allows for better heat distribution, reducing the risk of premature wear.  Full face discs excel in standard and moderate performance applications, offering a balanced blend of drivability and durability. However, they may lack the aggressive grip required for extreme power handling compared to paddle-style discs, making them better suited for stock to lightly modified vehicles. 

Single Disc: A single disc clutch is the most common and straightforward clutch design, featuring one friction disc to transfer power from the engine to the transmission. Known for its simplicity and reliability, it is ideal for standard vehicles, daily drivers, and light performance applications. Single disc clutches provide smooth engagement, making them perfect for casual driving and moderate power outputs. While single disc clutches offer excellent drivability and cost-effectiveness, they have limited torque capacity compared to multi-disc setups. This design is best suited for vehicles with moderate horsepower levels where comfort, longevity, and ease of use are the primary concerns.

Modified Pressure Plate: A modified pressure plate is engineered to deliver increased clamping force, enhancing torque capacity and overall clutch performance. This upgraded design often features reinforced components, heavier diaphragm springs, or altered fulcrum points to provide superior grip on the clutch disc. While modified pressure plates offer enhanced power handling, they often result in a stiffer clutch pedal feel due to the increased spring pressure. 

Stage 2 Clutch: A Stage 2 clutch offers a significant performance boost compared to Stage 1 setups. Designed with stronger friction materials it provides higher torque capacity and heat resistance. This stage is ideal for moderately modified vehicles, including turbocharged setups, nitrous systems, and track-ready builds needing enhanced grip and reduced slippage. Although it offers increased power handling, Stage 2 clutches can introduce a slightly stiffer pedal feel and more aggressive engagement than Stage 1, making them better suited for drivers prioritizing performance while still requiring reasonable street drivability. 

Features:
  • Stage 2 Clutch
  • 20K Lbs. Towing Capacity
  • Rated To Hold 425HP & 900TQ
  • Organic/Feramic Friction Material
  • Includes New Hydraulic Assembly
  • Smooth Engagement With A Single Disc Clutch
  • Improved Drivability And Reliability With Modified Diaphragm Pressure Plate
  • Includes Flywheel, Throw-Out Bearing, Alignment Tool, And Pilot Bushing
Manufacturer Warranty*:
1 Year / 12,000 Mile

Reviews For South Bend Clutch G56-OK-HD

Overall Rating
5.0/5
7 Reviews
Rating Snapshot
5 ★
7
4 ★
0
3 ★
0
2 ★
0
1 ★
0
Verified Buyer
★★★★★ ★★★★★
Amazing
Lukea (Montana) | March 7th, 2024
Works as it should, love this clutch.
Verified Buyer
★★★★★ ★★★★★
best clutch for towing
tom (oregon) | February 9th, 2024
Ordered this clutch to replace a dual mass flywheel (factory clutch) night and day difference in the way the vehicle feels even when the old clutch was new, responds very well at a little over stock horse power no issues kit was complete quality parts no install issues at all.
Verified Buyer
★★★★★ ★★★★★
Great service, quick shipping, South Bend G56 kit
Rick (Arizona) | November 11th, 2023
Ordered the G56-OK-HD South Bend clutch and flywheel kit. It was shipped right away. Arrived complete. I will buy again from XDP. Very pleased with their service.
Verified Buyer
★★★★★ ★★★★★
South bend clutch kit
Diesel mechanic (Oregon) | February 4th, 2023
South Bend clutch is a good product. XDP is great company to deal with. Only thing that Could be better is if South Bend could include the spring that connects to the throw out bearing arm. Once you drop the tranny, replace the clutch, and swap out that bearing, you will not have that spring and it’s a pain to track that down. Besides that all good. Thanks XDP!
Verified Buyer
★★★★★ ★★★★★
Order #2570051A
Kevin (Keyser WV) | January 13th, 2023
Fantastic people to work with. Fast shipping. Great product.
 
★★★★★ ★★★★★
Anouther great product
Coal & Iron Diesel Performance (Dunlap tn) | July 12th, 2021
South bend makes a great product and recommend them time and time again
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Frequently Asked Questions

What clutch would you recommend for me?

I have a 07.5 6.7 with tuner, cold air intake and 5" exhaust. Tow up to 10,000

The South Bend Heavy Duty Clutch Kit G56-OK-HD would be perfect for you application. (Moderate tuning and heavy towing while maintaining smooth engagement) If you plan on going with more HP in the future then it may be more beneficial to upgrade to one of the South Bend Street Dual Disc Clutches.

is this clutch right for me i have a 2013 cummins 6.7 i have about 350 hp 660 tq and i tow about 15,000 lbs once a week i want something that'll last a little while while minding its manners

The SOUTH BEND HEAVY DUTY CLUTCH KIT G56-OK-HD is the perfect clutch for a truck with mild modifications and one that utilizes the truck for heavy hauling. The organic lining on the SOUTH BEND HEAVY DUTY CLUTCH KIT G56-OK-HD will maintain a smooth engagement similar to stock.

How noisy is this clutch
The Heavy Duty South Bend Clutch Kit will have many characteristics of a factory clutch. The organic lining makes for a smooth and quiet engagement.
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Specifications For South Bend Clutch G56-OK-HD

MPN G56-OK-HD
SKU SBG56-OK-HD
ID 16904
Manufacturer Name South Bend Clutch
Shipping Weight 42.00 lb.
Shipping Length 20 in.
Shipping Width 20 in.
Shipping Height 8 in.
Fuel Type Diesel
Manufacturer Warranty* 1 Year / 12,000 Mile
Prop 65 Prop 65 WarningWARNING: Cancer & Reproductive Harm - P65Warnings.ca.gov
Cross Reference # 52104855AB, 52104855AA, 52104725AA, 52104725AB, 52104724AD, 52087514
Internal L14R13

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