MR1-HDSS kit features ACT's most popular Heavy Duty pressure plate and most popular street disc. ACT Heavy Duty pressure plates use exclusive diaphragm design to increase clamp load, reduce deflection and maximize clutch life. All diaphragms endure a four-stage, heat-treating process for unparalleled performance. ACT pressure plates have precision cover stampings to provide rigidity and consistency. ACT's Performance Street discs feature premium organic materials with high copper content for better heat transfer and steel-backed lining for greater burst strength and durability. These discs have reduced marcel for faster shift action to complement ACT pressure plates, with increased strength and reliability.

• "Excellence in Performance", backed by the best one-year warranty in the industry!

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The Detroit Truetrac is a helical-gear style, limited-slip differential that maximizes wheel traction and enhances driving characteristics. Maintenance-free, it features smooth, automatic operation in forward and reverse. Its versatility makes Detroit Truetrac the ideal traction solution for almost any type of vehicle.

• Optimized Torque Bias Ratios Deliver Max Acceleration And Handling
• No Special Lubrication Or Friction Modifiers Needed
• Helical Gear Limited Slip Differential
• Durable; Smooth; Quiet Operation
• Works In Forward And Reverse
• Ideal For Most Vehicles
• Automatic Engagement

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Yukon Hardcore Diff Covers are constructed from thick-walled, high-strength nodular steel to protect lockers, gears and axles from the most extreme hits in off road driving. They also increase the structural rigidity of the differential, reducing deflection under high-torque situations that can put severe loads on vital internal parts. Yukon Hardcore Diff Covers feature a durable powder coat finish and high strength steel fasteners for easy bolt-on installation. It’s no secret that the underside of your rig can take a beating. Remember your diff! It’s the lowest hanging fruit and very susceptible to damage… crack or break it and you’re done for the day. Upgrade to a Yukon Hardcore Diff Cover and enjoy more peace of mind on the trail.

• Contoured inner surfaces circulate oil more rapidly for faster cooling
• Thick-walled nodular iron construction promotes housing rigidity
• Contrasting stainless-steel accent plate and cover bolts
• Black powder coat finish adds durability and style
• Fits Standard And Reverse Rotation Diffs

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High volumes of cool oil equate to long transmission life. BD's transmission pans increase oil capacity, while aluminum construction and heat-dissipating fins keep the temperature down. As an added bonus, the pan's increased rigidity prevents case twisting. Kit includes screws, nuts, temperature port plug, magnetic drain plug, OEM gasket, and OEM heat shield studs.

• Heavy duty construction with durable powder coat
• Heavy Duty Construction w/Durable Powder Coat
• Comes with OEM gasket and heat shield studs
• Comes w/OEM Gasket And Heat Shield Studs
• Not compatible with Hybrid powertrain
• Retains Factory Heat Shields
• Adds Temperature Sender Plug
• Includes Magnetic Drain Plug
• DOES NOT FIT F-150 RAPTOR
• Adds 2.1 Quarts Of Fluid
• Increases Pan Volume
• Cooling Fins

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Yukon Gear and Axle manufactures a complete line of general replacement and performance series of pinion yokes for many street, racing, and heavy-duty off-road applications.

• Fits 1963-1979 Corvette
• Side yoke

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Yukon Hardcore Locking Hubs feature chromoly internals and all-steel construction for ultimate durability and strength. These hubs won't disengage under high torque applications and default to the locked position in use. Engagement comes from just a 1/3 turn of the all-steel, low-profile bezel, ensuring quick changes between two-wheel and four-wheel drive. Yukon Hardcore locking hubs are not only great looking, but feature a low-profile design to minimize impact with obstacles, as well as a proprietary coating on the locking gears for decreased friction and a long service life.

• Low profile bezel to reduce impact with obstacles
• Low Profile Bezel To Reduce Impact w/Obstacles
• Chromoly internals for added strength
• 1/3 turn from disengaged to engaged
• Fits 1999-2004 Ford Super Duty
• Defaults to locked position
• All steel construction
• 35 spline

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Everything about the Yukon Grizzly Locker is hardcore, its casing and gears, its advanced gear tooth design, and its impact on traction and performance. The Yukon Grizzly Locker is a mechanical positive-locking differential that’s engineered for rock crawling, serious trail running, off-road racing, and drag racing. The unit provides 100% power to both tires, while still allowing for disengagement while negotiating turns. The Yukon Grizzly Locker is a patented design that features innovations that make it tougher than the competition. Its inner clutch teeth have a larger radius at the base, which offers up to 350% greater strength versus back-cut designs. The Grizzly Locker’s larger teeth also resist breakage caused by shock-loading or catastrophic axle failure. It’s a serious piece of mechanical engineering for serious driving conditions.

• Patented internal design reduces common locker failures
• Fits Dana Spicer 44 with 30 spline axles
• Fits Dana Spicer 44 w/30 Spline Axles
• 8620 internals for added strength
• 3.92 and up ratio only
• Assembled in the USA

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Yukon Gear & Axle high-performance ring and pinion gear sets are the benchmark of quality in the automotive gear industry. Yukon engineers use state-of-the art design, advanced heat-treating techniques, and leading-edge quality testing processes to ensure the structure and surface finish meet exacting specifications and quality standards. Yukon offers its Y.E.S. Plan, a lifetime, comprehensive, no-questions-asked protection plan covering your gear set for as long as you own your vehicle. Whether you’ve added tons of horsepower under the hood, upgraded to bigger tires, are just want to optimize the traction performance of your ride, Yukon offers the widest selection of gear ratios on the market to accommodate every need.

• Fits Standard Rotation Dana Spicer 44
• 8.50 in. Ring Gear Diameter
• 8.50" ring gear diameter
• 10 ring gear bolts
• 26 spline pinion
• 3.73 ratio

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Yukon Gear & Axle performance driveshafts deliver unrivaled performance over stock, fitting vehicles with up to a 4 ½-inch lift. Yukon driveshafts feature high strength steel, 1310-1410 u-joints, and the appropriate amount of slip travel. Tested and proven in extreme motorsport competition, these complete driveshaft assemblies offer greater strength, increased operating angles, and longer life on the street, up the rocks, or down the track. Yukon offers its Y.E.S. Plan, a lifetime, comprehensive, no-questions-asked protection plan covering your driveshaft for as long as you own your vehicle.

• Fits 2007-2011 Jeep JK Front
• Extra heavy duty design
• Two door and four door
• 1310 u-joint size

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Yukon Dura Grip is a positraction limited slip differential that provides smooth yet aggressive traction, giving you the confidence and performance you need across a wide variety of terrains. The Dura Grip is engineered for long life and is completely rebuildable. Dura Grips are constructed with a high strength nodular case, forged 4320 chromoly spider gears, and composite clutches. For unmatched positraction performance, the Dura Grip is the ultimate choice. When your vehicle demands performance, durability and strength, choose Yukon Dura Grip.

• All units are backed by extensive product testing and state-of-the-art software design
• Yukon Dura Grips feature 4320 chromoly spider gears for ultimate durability
• Fully rebuildable design and proudly assembled in the USA
• Fits 4.10 Gear Ratio & Down (Also Fits Thick Gears)
• Limited Slip Differential with Composite Clutches
• Fits 4.10 Gear Ratio Down [Also Fits Thick Gears]
• Limited Slip Differential w/Composite Clutches
• Fits 10.5 in. GM w/30 Spline Axles
• Fits 10.5" GM with 30 Spline Axles
• 4 Pinion Design

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Yukon Gear & Axle Spin Free Kits increase fuel efficiency and reduce maintenance costs. These kits replace the failure prone and expensive factory unit bearings with tapered bearings and races. The result is not only a design which is easier and more economical to service, but one that offers significant increases in fuel efficiency because there are fewer rotating parts in the drivetrain. Less parasitic drag equals better MPG. Spin Free Kits also include low-profile Yukon Hardcore Premium Locking Hubs, for quick changes between two-wheel and four-wheel drive.

• Includes new wheel hubs, spindles, high strength Yukon 4340 Chrome-Moly outer axles, Yukon Hardcore premium locking hubs, high quality bearings, high quality seals and all hardware for installation.
• Incl. Yukon Hardcore Premium Locking Hubs; High Quality Bearings; High Quality Seals And All Hardware For Installation
• Incl. New Wheel Hubs; Spindles; High Strength Yukon 4340 Chrome-Moly Outer Axles
• Fits 2000-2008 Dodge one ton with dual rear wheels
• Fits 2000-2008 Dodge One Ton w/Dual Rear Wheels

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Yukon Gear & Axle Spin Free Kits increase fuel efficiency and reduce maintenance costs. These kits replace the failure prone and expensive factory unit bearings with tapered bearings and races. The result is not only a design which is easier and more economical to service, but one that offers significant increases in fuel efficiency because there are fewer rotating parts in the drivetrain. Less parasitic drag equals better MPG. Spin Free Kits also include low-profile Yukon Hardcore Premium Locking Hubs, for quick changes between two-wheel and four-wheel drive.

• Includes new wheel hubs, spindles, high strength Yukon 4340 Chrome-Moly outer axles, Yukon Hardcore premium locking hubs, high quality bearings, high quality seals and all hardware for installation.
• Incl. Yukon Hardcore Premium Locking Hubs; High Quality Bearings; High Quality Seals And All Hardware For Installation
• Incl. New Wheel Hubs; Spindles; High Strength Yukon 4340 Chrome-Moly Outer Axles
• Fits 2000-2008 Dodge one ton with single rear wheels
• Fits 2000-2008 Dodge One Ton w/Single Rear Wheels
• Fits Dana 60 front differential
• For axle disconnect design

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Tuff Country u-bolts are designed specifically for vehicles with suspension lift kits. These zinc plated; corrosion resistant kits include (4) ubolts along with nuts and washers.

• Includes Four U-Bolts/Nuts And Washers
• Zinc Plated To Resist Corrosion
• Rear Axle U-Bolts

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Tuff Country u-bolts are designed specifically for vehicles with suspension lift kits. These zinc plated; corrosion resistant kits include (4) ubolts along with nuts and washers.

• Includes Four U-Bolts/Nuts And Washers
• Zinc Plated To Resist Corrosion
• Rear Axle U-Bolts

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