Upgrade your drivetrain with the Revolution Gear & Axle Ring and Pinion Set, precision-engineered for Dana 30 short pinion front axles. This 4.88 ratio gear set is a critical modification for off-road builds, designed to restore lost torque and performance when moving to larger tire diameters or adding significant vehicle weight.

• Fits Dana 30 short pinion front differential applications.
• 4.88 gear ratio provides increased mechanical advantage for crawling and towing.
• Precision heat-treated and lapped gear teeth for smooth operation and durability.
• Replaces factory gears to accommodate specific tire height and powerband requirements.

Includes one ring gear and one short pinion gear. Professional installation and a master overhaul kit are highly recommended to ensure proper gear mesh and longevity.

Upgrade your drivetrain with the Revolution Gear & Axle T8-488R, a high-performance 4.88 ratio ring and pinion set engineered for Toyota 8-inch 4-cylinder differentials. This gear set features a reverse rotation (high pinion) design, making it an essential upgrade for front axle applications where increased strength and corrected gear geometry are required after installing larger tires or suspension lifts.

• Ratio: 4.88
• Differential Fitment: Toyota 8-inch 4-Cylinder
• Pinion Spline Count: 27 Spline
• Rotation: Reverse Rotation (High Pinion)
• Material: Heat-treated high-grade steel for maximum durability
• MPN: T8-488R

Each set is precision-lapped to ensure an ideal gear mesh, resulting in quieter operation and a longer service life under demanding off-road conditions. This kit replaces the factory ring and pinion to restore lost torque and improve crawling capability.

Fits select 1999-2024 Ford F-150, F-250/F-350 Super Duty, E-Series, and Excursion models with the Ford 10.5-inch rear differential.

Restore the lockup performance and traction of your factory limited-slip differential with the Yukon Gear Tracloc Positraction Clutch Set. Over time, the friction material on OEM clutch plates wears down, leading to differential chatter or a complete loss of limited-slip function. This kit is specifically engineered for the 3-pinion design found in Ford 10.5-inch housings, providing a direct-fit solution to refresh your carrier without the cost of a full unit replacement.

Manufactured to meet or exceed original equipment specifications, this set ensures proper tolerances and stack height for smooth engagement and consistent torque transfer. Whether you are rebuilding a high-mileage work truck or performing a routine differential service, these components provide the durability required for heavy-duty applications.

• Fits Ford 10.5-inch rear differentials
• Specifically designed for 3-pinion Trac Loc carriers
• Restores factory limited-slip traction and reduces wheel spin
• High-quality friction and steel plate construction
• Manufacturer Part Number: YPKF10.5-PC

Upgrade your drivetrain with this Revolution Gear & Axle ring and pinion set, specifically engineered for the Dana 60 front axle. Featuring a 5.38 gear ratio, this set is an essential solution for off-road enthusiasts and builders looking to restore lost torque and power after installing larger tires or for those requiring specialized low-range crawling capability.

Revolution Gear & Axle components are manufactured from high-quality steel and precision heat-treated to withstand the stresses of high-torque applications. Each ring and pinion set is a lapped and matched pair, ensuring a smoother setup and quieter operation during rotation. This kit replaces your worn or factory-ratio gears to provide the mechanical advantage needed for demanding terrain.

• Part Type: Ring and Pinion Gear Set
• Axle Application: Dana 60 Front
• Gear Ratio: 5.38
• Material: High-strength heat-treated steel
• Manufacturer Part Number: D60-538

Upgrade your drivetrain with the Revolution Gear & Axle Dana 44 Thick Rear Ring & Pinion Set. This 4.56 ratio gear set is engineered for precision and durability, providing the mechanical advantage required for larger tires and demanding off-road terrain.

As a "thick" gear set, this component is designed to install a numerically higher 4.56 ratio onto a 3.73-and-down carrier. This allows for a significant ratio upgrade without the added expense of replacing the carrier. The ring gear features a dual-drilled design, ensuring compatibility with both 3/8-inch and 7/16-inch ring gear bolts for versatile fitment across various Dana 44 configurations.

• Differential Application: Dana 44
• Gear Ratio: 4.56
• Gear Type: Thick Gear (Fits 3.73 and numerically lower carriers)
• Ring Gear Bolt Pattern: Dual Drilled for 3/8" and 7/16" hardware
• Placement: Rear Axle
• Manufacturer Part Number: D44-456TD

Upgrade your vehicle's drivetrain with the Revolution Gear & Axle T9.5-488 Ring & Pinion Set, specifically engineered for the Toyota 9.5-inch rear axle. This high-strength gear set features a 4.88 ratio, providing the necessary mechanical advantage to restore lost torque and acceleration after installing larger tires or heavy off-road equipment.

Revolution Gear & Axle components are manufactured to exacting tolerances and precision-lapped to ensure quiet operation and a reliable gear pattern during installation. The 29-spline pinion design offers the robust performance required for both daily driving and demanding trail use.

• Axle Application: Toyota 9.5-inch Rear
• Gear Ratio: 4.88
• Pinion Spline Count: 29-Spline
• Construction: Precision-lapped for heat reduction and quiet operation
• Manufacturer Part Number: T9.5-488

This Revolution Gear & Axle Ring & Pinion Set is engineered for Toyota 8-inch 4-cylinder high-pinion front differentials. Providing a 4.88 gear ratio, this set is an essential upgrade for off-road enthusiasts looking to restore power and torque after installing larger tires or to improve crawling performance.

Built for durability and precise mesh, these gears are designed to withstand the stresses of technical trails and heavy-duty use. The 29-spline pinion design ensures a robust connection to the drivetrain, while the reverse rotation configuration is specific to high-pinion front axle applications.

• Manufacturer: Revolution Gear & Axle
• Differential: Toyota 8.0-inch 4-Cylinder
• Pinion Spline Count: 29 Spline
• Rotation: Reverse Rotation
• Gear Ratio: 4.88
• MPN: T8-488R-29

This Revolution Gear & Axle Ring and Pinion Set is designed for Toyota owners looking to restore mechanical advantage and power delivery after installing larger tires or heavy accessories. Engineered for the Toyota 8.0-inch 4-cylinder differential, the 4.88 gear ratio helps bring the engine back into its optimal RPM range, improving drivability both on and off-road.

Precision-cut and heat-treated for longevity, this gear set (MPN: T8-488) provides the durability required for demanding terrain while maintaining the tolerances needed for quiet operation. This kit replaces the factory ring and pinion to correct speedometer calibration and reduce strain on the drivetrain.

• Differential Fitment: Toyota 8.0" (4-Cylinder)
• Gear Ratio: 4.88
• Pinion Spline Count: 27 Spline
• Manufacturer Part Number: T8-488

Fits 2011-2025 Ford F-150 models equipped with the 9.75-inch rear differential.

Upgrading to a 4.88 gear ratio is an essential modification for F-150 owners running larger aftermarket tires or looking to restore lost torque while towing. This Revolution Gear & Axle ring and pinion set is engineered to provide the precise gear reduction needed to bring your engine back into its optimal power band, improving off-the-line acceleration and reducing strain on your drivetrain components.

Constructed for durability and quiet operation, these gears undergo rigorous heat-treatment processes to ensure they withstand the high-torque demands of modern Ford trucks. Each set is precision-matched for a consistent contact pattern and straightforward setup during installation.

• Manufacturer Part Number: F9.75-488-11
• Axle Application: Ford 9.75-inch Rear
• Gear Ratio: 4.88
• Pinion Spline Count: 31
• Ring Gear Diameter: 9.75 inches
• Position: Rear

Optimize your drivetrain for larger tires or increased towing demands with the Revolution Gear & Axle 5.13 Ratio Long Ring & Pinion Set. Engineered specifically for the Ford 10.25in rear axle, this gear set provides the mechanical advantage needed to restore torque and improve acceleration by adjusting the final drive ratio. This "Long" pinion variant ensures precise fitment for compatible differential housings, maintaining the tight tolerances required for quiet operation and long-term durability.

• Manufacturer Part Number: F10.25-513L
• Axle Application: Ford 10.25in Rear
• Gear Ratio: 5.13
• Pinion Specification: Long
• High-strength construction designed for severe-duty applications
• Precision-cut gear teeth for optimal mesh and reduced heat buildup

Fits 2017-2022 Ford F-250, F-350, and F-450 Super Duty trucks equipped with a Dana 60 reverse rotation front axle.

This Revolution Gear & Axle ring and pinion set is engineered to restore performance and torque in late-model Ford Super Duty trucks. Moving to a 5.38 gear ratio is a critical upgrade when installing larger-diameter tires, as it brings the engine back into its optimal RPM range to maintain towing capacity and off-road crawl ratios. Precision-lapped for a quiet mesh and smooth operation, these gears are built to handle the high-torque demands of heavy-duty diesel and gas drivetrains.

Constructed from high-strength heat-treated steel, this set replaces the factory gearing in the front D60 housing with a focus on durability and reliable gear patterns under load.

• Axle Application: Dana 60 (D60)
• Rotation: Reverse (Front)
• Gear Ratio: 5.38
• Manufacturer Part Number: D60S-538RT
• Compatibility: 2017-2022 Ford F-250/F-350/F-450

This Revolution Gear & Axle Ring and Pinion set is engineered for Dana 44 rear axle applications requiring a 5.38 gear ratio. As a "thick" gear set, it is specifically designed to mount onto 3.73-and-down (numerically lower) differential carriers. This allows you to upgrade to a deeper gear ratio without the additional expense of replacing your existing carrier.

To ensure maximum compatibility and ease of installation, the ring gear is dual-drilled. This feature allows the gear set to accommodate multiple ring gear bolt sizes, fitting a wider range of factory and aftermarket Dana 44 carriers. Each set is manufactured to precise tolerances to provide a reliable mesh and quiet operation on the street or the trail.

• Manufacturer Part Number: D44-538TD
• Axle Model: Dana 44 (Rear)
• Gear Ratio: 5.38
• Gear Type: Thick Gear (compatible with 3.73 & down carriers)
• Bolt Pattern: Dual Drilled Ring Gear

Upgrade your drivetrain with the Revolution Gear & Axle Dana 44 Reverse Rotation Ring and Pinion Set. This 4.88 ratio gear set is engineered for high-pinion rear axle applications, providing the mechanical advantage needed to compensate for larger tire diameters and restore lost torque. Precision-cut from high-strength steel, this set ensures reliable tooth contact and durability under high-stress off-road conditions.

• Precision Gearing: 4.88 ratio offers a significant increase in crawl ratio and low-end power.
• Specific Fitment: Designed exclusively for Dana 44 reverse rotation (high pinion) housings in rear axle configurations.
• Heat Treated: Manufactured for maximum longevity and wear resistance during heavy use.
• MPN: D44-488R

The Revolution Gear & Axle Dana 44 Rear 4.88 Ratio Dual Drilled Ring & Pinion Set is engineered for precision and durability in demanding off-road and street applications. This gear set provides a significant ratio change to help restore lost torque and improve the power band when running larger tire diameters or for specialized crawling needs.

The dual-drilled ring gear design offers increased versatility, ensuring compatibility across different carrier bolt patterns for a straightforward installation. Each ring and pinion set is precision-matched to ensure quiet operation and a consistent contact pattern under load, providing the reliability required for performance drivetrain builds.

• Manufacturer Part Number: D44-488D
• Axle Application: Dana 44 Rear
• Gear Ratio: 4.88
• Ring Gear Feature: Dual Drilled
• Component Type: Matched Ring and Pinion Set

Upgrade or repair your drivetrain with the Revolution Gear & Axle Dana 44 Rear Axle Ring & Pinion Set. This 3.73 ratio gear set (MPN: D44-373) is engineered to meet or exceed original equipment standards, providing a precise mesh for quiet operation and reliable torque transfer in Dana 44 rear differential housings.

• Precision Machined: Manufactured to tight tolerances to ensure proper gear contact patterns and reduced drivetrain noise.
• Optimized Gearing: The 3.73 ratio offers an ideal balance for daily drivability and fuel economy on vehicles equipped with stock to moderately oversized tires.
• Heavy-Duty Construction: Built from high-quality steel to withstand the stresses of both street and trail use.
• Component Specs: Specifically designed for the Dana 44 rear axle; includes one ring gear and one pinion gear.

Proper installation requires professional setup to ensure correct backlash and tooth contact, maximizing the lifespan of your differential. Part Number: D44-373.

Fits select 1967-2015 Chevrolet and GMC C/K 20, 30, 2500, and 3500 series trucks and vans equipped with the GM 10.5" 14-bolt rear differential and an Eaton-style or Yukon Dura Grip positraction unit.

This Yukon Gear & Axle clutch rebuild kit is engineered to restore factory-level traction and performance to your limited-slip differential. The kit features 14 advanced carbon fiber clutch plates that offer superior thermal stability and friction characteristics compared to standard organic plates. By replacing worn OE components with these high-performance carbon discs, you ensure more consistent power delivery to the wheels and extended service life under heavy load or towing conditions.

• Compatible with GM 10.5" 14-bolt (14T) differentials
• Designed for Yukon Dura Grip and Eaton-style positraction units
• Includes 14 high-friction carbon fiber clutch plates
• Direct replacement for worn or chattering internal clutch packs
• Manufacturer Part Number: YPKGM14T-PC-14

Fits select 2001-2019 Chevrolet Silverado, GMC Sierra, Dodge Ram, and Ram 2500/3500 trucks with the Chrysler/AAM 11.5-inch differential.

This Yukon Gear & Axle composite clutch kit is designed as a direct replacement for the Yukon Dura Grip limited slip differential (positraction) unit. Over time, heat and heavy usage can wear down internal clutches, leading to reduced traction and uneven power distribution. Installing this replacement kit restores the locking performance of your differential, ensuring consistent torque transfer in heavy-duty towing, hauling, or off-road conditions.

Manufactured using high-quality composite materials, these friction plates provide smooth engagement and superior durability for high-torque applications. This kit is specific to the 11.5-inch ring gear housing found in many heavy-duty domestic trucks.

• Direct replacement for Yukon Dura Grip positraction units
• Optimized for the Chrysler/AAM 11.5-inch rear differential
• High-quality composite friction material for reliable performance
• Restores factory-level traction and locking characteristics
• Manufacturer Part Number: YPKGM11.5-PC-DG1

Fits select 1975-2014 Ford, Lincoln, and Mercury vehicles equipped with the Ford 8.8" Trac-Lok limited-slip differential. This Yukon Gear & Axle clutch kit is designed to restore factory-spec traction and performance to worn Trac-Lok (Tracloc) style positraction units.

As clutches wear down over time, the limited-slip differential loses its ability to transfer torque effectively, often resulting in one-wheel spin or internal chatter. This complete replacement set features stout clutch plates engineered for long-lasting durability and consistent grip. The kit includes the necessary components for both sides of the differential carrier to ensure balanced performance across the axle.

• Replaces worn internal clutches in Ford 8.8-inch Trac-Lok differentials
• Restores limited-slip engagement and torque transfer
• Heavy-duty friction and steel plates for reliable service life
• Includes components for both sides of the carrier
• Manufacturer Part Number: YPKF8.8-PC-L

Fits select 1988-2015 Chevrolet, Dodge, Ford, and GMC C3500, K3500, Ram 2500/3500, and F-350 models with Dana 80 differentials.

Restore the performance and reliability of your limited-slip differential with the Yukon Gear & Axle spider gear kit. Engineered to exceed OEM standards, these internal components are manufactured using high-quality materials and precise heat-treating processes to ensure a longer service life and better resistance to wear under heavy towing or high-torque conditions. Whether you are rebuilding a worn unit or performing routine maintenance, this kit provides a direct-fit solution to eliminate slack and restore proper power transfer.

• Fits Dana Spicer 80 Power Lok and Trac Lok positraction differentials
• Compatible with 35-spline axles
• Constructed from high-strength alloys for increased durability
• Restores factory-smooth differential operation
• Manufacturer Part Number: YPKD80-P/L-35-R

Kit Includes:

• (2) Side Gears
• (4) Pinion Gears
• Cross Pin Shafts
• Side Gear Thrust Washers

Fits select 1954-2014 Chevrolet, Dodge, Ford, GMC, Jeep, and Plymouth vehicles equipped with Dana 60, 70, 70U, or 70HD Power Lok limited-slip differentials.

The Yukon Gear & Axle YPKD60-PC-P/L clutch kit is engineered to restore factory-level traction and smooth torque transfer to your Powr Lok positraction unit. This kit replaces worn-out internal friction discs to eliminate differential chatter and ensure consistent power delivery to the wheels. Constructed with a combination of steel and fiber materials, these components are designed to withstand the high thermal loads of heavy-duty towing and off-road use.

• Compatible with Dana Spicer 60, 70, 70U, and 70HD Power Lok differentials
• Features 14 advanced carbon clutch plates for maximum grip and durability
• Direct replacement for factory internal clutch stacks
• Precision manufactured for exact fitment and reliable performance
• Manufacturer Part Number: YPKD60-PC-P/L

Fits select 1960-2010 Chevrolet, Chrysler, Dodge, Ford, GMC, Jeep, and Plymouth vehicles with 5.9L engines and limited-slip differentials.

Restore factory-level traction and eliminate differential chatter with the Yukon Gear & Axle Tracloc Clutch Kit. This professional-grade rebuild kit is engineered specifically for Dana Spicer 44 and Chrysler 9.25-inch Trac Loc positraction units. Over time, friction plates in a limited-slip differential (LSD) wear down, leading to increased wheel slip and reduced off-road or towing performance. This kit replaces those worn internals with precision-matched components to bring your differential back to its original performance standards.

• Direct replacement for Dana Spicer 44 and Chrysler 9.25" Trac Loc units
• Designed to restore proper lock-up and torque transfer
• Manufactured to high tolerances for smooth, quiet operation
• Complete clutch pack solution for differential maintenance
• Manufacturer Part Number: YPKD44-PC-T/L

Fits select 1960-1996 Chrysler, Dodge, Jeep, and Plymouth vehicles with an 8.25-inch rear differential and 27-spline axles (2.56 & Up gear ratio).

The Yukon Dura Grip is a clutch-style limited slip differential (LSD) designed to provide reliable, aggressive traction for street, strip, and off-road applications. Engineered for the Chrysler 8.25-inch housing, this unit delivers smooth power transfer between wheels, effectively eliminating the "one-wheel-peel" associated with open differentials while improving stability under heavy load.

Construction features a high-strength nodular iron case to resist deflection and internal 4320 chromoly spider gears for superior tooth strength. The composite clutches provide consistent friction performance and a long service life. This unit is fully rebuildable, allowing you to maintain peak performance without replacing the entire carrier.

• Fits Chrysler 8.25-inch differentials with 27-spline axles
• Compatible with gear ratios of 2.56 and numerically higher
• High-strength nodular iron case for maximum durability
• Forged 4320 chromoly spider gears for superior strength
• Composite clutches for smooth yet aggressive engagement
• Fully rebuildable design
• Assembled in the USA
• Manufacturer Part Number: YDGC8.25-27-1