Yukon YG C9.25R-430R-14 Ring & Pinion 4.30 Reverse for Ram 2500 3500 9.25 Front

Vehicle Fitment

• 2014-2023 Ram 2500 (4WD, AAM / Chrysler 9.25" Reverse Rotation Front Differential - 12-Bolt Cover)
• 2014-2023 Ram 3500 (4WD, AAM / Chrysler 9.25" Reverse Rotation Front Differential - 12-Bolt Cover)

Fitment Notes

• The "-14" suffix designates the 2014 and newer AAM 9.25" front differential design - this version has a 12-bolt cover and is NOT compatible with the earlier 2003-2013 Ram 2500/3500 9.25" front differential, which uses a 14-bolt cover
• This is a REVERSE ROTATION gear set - designed exclusively for the AAM 9.25" front differential; will NOT fit the standard-rotation Chrysler 9.25" rear differential
• 30-spline pinion - confirm pinion spline count before ordering
• No carrier break - the AAM 9.25" front differential uses a single carrier for all gear ratios; no carrier swap is required when re-gearing
• Front and rear differentials must always run matching gear ratios on 4WD vehicles - plan to re-gear both axles simultaneously to prevent drivetrain binding
• Professional installation required - reverse-rotation IFS front differential setup demands specialized tools and precise preload and backlash measurements

Features

• High-grade steel construction in both ring and pinion for superior strength in 4WD front differential applications
• Precision-engineered reverse-rotation tooth geometry matched to the AAM 9.25" front housing for accurate power transfer and quiet operation
• Built to OEM dimensional tolerances for accurate, direct-fit installation in the 2014-and-newer AAM 9.25" front housing
• Advanced heat-treating process hardens gear surfaces for improved wear resistance and long-term shear strength
• Validated through two in-house Yukon quality labs for dimensional accuracy and metallurgical integrity
• 4.30 ratio delivers a strong balance of low-end torque and towing performance - a popular re-gear choice for Ram HD trucks running larger tires
• Quiet operation achieved through precision tooth geometry and tight manufacturing tolerances
• Backed by Yukon's Y.E.S. Plan - lifetime no-questions-asked coverage for as long as you own the vehicle

Specifications

• Part Number: YG C9.25R-430R-14
• Gear Ratio: 4.30
• Ring Gear Diameter: 9.25"
• Ring Gear Bolt Count: 12
• Cover Bolt Count: 12
• Pinion Spline Count: 30
• Carrier Break: None
• Gear Rotation: Reverse (IFS Front)
• Differential Application: AAM / Chrysler 9.25" Reverse Rotation Front (2014 and Newer)
• Position: Front Axle (4WD Only)

Included Components

• 1x Ring Gear
• 1x Pinion Gear

Product Description

The Yukon YG C9.25R-430R-14 is a high-performance reverse-rotation ring and pinion gear set engineered specifically for the 2014-and-newer AAM / Chrysler 9.25" front differential found in 4WD Ram 2500 and Ram 3500 trucks. The "-14" suffix is critical - the 2014 redesign introduced a 12-bolt differential cover, distinguishing it from the earlier 2003-2013 version which used a 14-bolt cover. These two generations are not interchangeable, and ordering the wrong version will result in an incorrect fit.

The AAM 9.25" front differential uses a reverse-rotation (high-pinion) gear design - a requirement for the front axle's IFS configuration that allows for reduced driveshaft U-joint operating angles. This gear set is specific to the front differential and cannot be substituted with the standard-rotation 9.25" rear axle gears used in the same trucks. A key advantage of the AAM 9.25" front is that it has no carrier break - a single carrier works across all gear ratios, so no carrier swap is needed when re-gearing.

The 4.30 ratio is a popular re-gear choice for Ram 2500 and Ram 3500 owners who have installed larger tires and want to restore power delivery, towing capability, and fuel efficiency without going to an extremely aggressive ratio. When re-gearing a 4WD vehicle, front and rear differentials must always match to avoid drivetrain binding - plan to install matching rear gears simultaneously. Pair with a compatible Yukon master overhaul kit for all necessary bearings, seals, and hardware. Professional installation is strongly recommended.