Yukon Ring & Pinion Set – GM 8.25" IFS , Rev. Rotation, 30-Spline
YUKYG GM8.5-373
Upgrade your front differential with the Yukon GM 8.25" IFS Reverse Rotation Ring & Pinion Set for 2013 and older GM trucks running the 8.25" independent front suspension. Built to OEM standards, these gears feature an optimized tooth profile and surface finish that reduces friction, controls heat, and delivers consistent load distribution across the gear face—critical for long-term durability in IFS applications.
Reverse rotation front differentials require a dedicated gear design, and Yukon’s geometry ensures proper contact pattern, strength, and quiet operation under load. This is especially important for trucks running larger tires or seeing regular towing, where driveline stress is amplified. Upgrading gear ratio restores lost torque, improves throttle response, and brings drivability back in line with your setup. Always verify carrier break compatibility prior to installation.
Includes:
- Reverse rotation ring gear
- Matching pinion gear
- Available Gear Ratios: 3.23, 3.42, 3.73, 4.11, 4.56, & 4.88
Installation kit, bearings, shims, and carrier sold separately unless noted.
Sold as a matched gear set
Specifications
- Brand: Yukon Gear & Axle
- Product Type: Ring & pinion gear set
- Application: GM 8.25" IFS front differential
- Rotation: Reverse rotation
- Available Gear Ratios: 3.23, 3.42, 3.73, 4.11, 4.56, & 4.88
- Ring Gear Diameter: 8.25"
- Pinion Spline Count: 30-spline
- Ring Gear Bolt Count: 10 bolts
- Material: High-grade steel
- Fitment Standard: OEM spec
Fitment
- Fits 2013 and older GM 8.25" IFS front differentials
- Front independent suspension applications requiring reverse rotation gears
- Common in GM trucks and SUVs depending on model/year
- Carrier Note:
- 2010 GM 8.25" IFS front ends equipped with factory 3.08 gears will require a new carrier when changing ratios.
- When upgrading to 3.42 and numerically higher gears, you must also purchase carrier YC G26018131.
- Deck Height with 3.08 Ratio: 1.780"
- Deck Height with 3.42 & Up Ratio: 1.920"
- Verify axle code, carrier break, and application before ordering.
Tech Insight
Reverse rotation front differentials use a dedicated gear set and cannot use standard rotation gears. Proper tooth geometry is critical for strength and quiet operation, especially in IFS trucks that see towing or oversized tires.
Upgrading from factory gears improves throttle response and helps recover lost power when running larger tires. Always confirm carrier break requirements before installation.