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Yukon Gear Ring & Pinion Gear Set for Ford 8.8 in. Reverse Rotation (IFS Front) (YG F8.8R-411R)
The YG F8.8R-411R is a Yukon Gear high performance ring & pinion gear set engineered for the Ford 8.8 in. Reverse Rotation (IFS Front). Whether you are building a dedicated trail rig, upgrading for larger tires, or replacing worn factory gearing, part number YG F8.8R-411R delivers the precision, strength, and long-term reliability your drivetrain demands. Yukon Gear applies CNC-machined tooth profiles, high-grade alloy steel, and vacuum heat treating to every YG F8.8R-411R gear set they produce.
Features and Benefits
- High-grade alloy steel construction for superior strength and fatigue resistance
- CNC-machined tooth profile reduces friction and heat during high-load operation
- Vacuum heat treatment improves case hardness and core toughness throughout
- Designed to OEM dimensions for precise fit in the Ford 8.8 in. Reverse Rotation (IFS Front)
- Compatible with factory and aftermarket limited-slip and locking differentials
- One-year warranty against manufacturer defects; optional Y.E.S. lifetime protection plan available
- Sold as a matched set for balanced break-in and consistent wear patterns
- Drop-in fit eliminates time-consuming custom fitting during installation
Vehicle Fitment
| Year | Make | Model | Trim |
|---|---|---|---|
| 1997 | Ford | F-150 | XL |
| 1998 | Ford | F-150 | XL |
| 1999 | Ford | F-150 | XL |
| 2000 | Ford | F-150 | XL |
| 1997 | Ford | F-150 | XLT |
| 1998 | Ford | F-150 | XLT |
| 1999 | Ford | F-150 | XLT |
| 2000 | Ford | F-150 | XLT |
| 2001 | Ford | F-150 | XLT |
| 2002 | Ford | F-150 | XLT |
| 1997 | Ford | Expedition | XLT |
| 1998 | Ford | Expedition | XLT |
| 1999 | Ford | Expedition | XLT |
| 2000 | Ford | Expedition | XLT |
| 2001 | Ford | Expedition | XLT |
| 2004 | Ford | F-150 | FX4 |
| 2005 | Ford | F-150 | FX4 |
| 2006 | Ford | F-150 | FX4 |
| 2007 | Ford | F-150 | F-150 FX4 |
| 2008 | Ford | F-150 | FX4 |
| 2009 | Ford | F-150 | FX4 |
| 2010 | Ford | F-150 | FX4 |
| 2011 | Ford | F-150 | FX4 |
| 2012 | Ford | F-150 | FX4 |
| 2013 | Ford | F-150 | FX4 |
| 2014 | Ford | F-150 | FX4 |
| 1998 | Lincoln | Navigator | XL |
| 1999 | Lincoln | Navigator | XL |
| 2000 | Lincoln | Navigator | XL |
| 2001 | Lincoln | Navigator | XL |
| 2017 | Ford | F-150 | Raptor |
| 2018 | Ford | F-150 | Raptor |
| 2019 | Ford | F-150 | Raptor |
| 2020 | Ford | F-150 | Raptor |
| 2021 | Ford | F-150 | Raptor |
| 2022 | Ford | F-150 | Raptor |
Specifications
| Specification | Detail |
|---|---|
| Part Number | YG F8.8R-411R |
| UPC | 883584246831 |
| Differential | Ford 8.8 in. Reverse Rotation (IFS Front) |
| Ring Gear Size | 8.8 in. |
| Pinion Spline Count | 28 spline pinion |
| Gear Ratio | 4.11 |
| Type | Ring & Pinion Gear Set |
| Warranty | 1 Year Against Manufacturer Defects |
What Is Included
- One (1) ring gear
- One (1) pinion gear
- Installation instructions
Frequently Asked Questions
Q: What differential does part number YG F8.8R-411R fit?
A: The YG F8.8R-411R is engineered specifically for the Ford 8.8 in. Reverse Rotation (IFS Front). Always verify your axle model and spline count before ordering.
Q: What gear ratio does YG F8.8R-411R provide?
A: This gear set produces a 4.11 ratio in the Ford 8.8 in. Reverse Rotation (IFS Front), suitable for vehicles running larger tires or requiring additional torque multiplication.
Q: Will this ring and pinion fit alongside a limited-slip or locking differential?
A: Yes. The YG F8.8R-411R is designed to work with standard open, limited-slip, and locking differentials. Verify carrier compatibility with your specific differential type.
Q: Does YG F8.8R-411R come with a warranty?
A: Yukon Gear provides a one-year warranty against manufacturer defects on the YG F8.8R-411R. The Magnuson-Moss Warranty Act protects your right to use aftermarket parts without voiding your vehicle's factory warranty.
Q: Do I need a break-in procedure after installing YG F8.8R-411R?
A: Yes. All new ring and pinion sets require a proper break-in. Avoid sustained high speeds or heavy towing for the first 500 miles.
Q: What additional parts will I need when installing YG F8.8R-411R?
A: A complete installation typically requires a differential overhaul kit (bearings, seals, shims), fresh gear oil, and RTV sealant.
Q: Is professional installation required for YG F8.8R-411R?
A: Professional installation by a drivetrain specialist is recommended. Precise backlash and preload settings are critical for gear longevity.
Q: Can using aftermarket gears like YG F8.8R-411R void my vehicle warranty?
A: Under the Magnuson-Moss Warranty Act, an automotive manufacturer cannot void your vehicle warranty simply because you installed an aftermarket part. They must demonstrate the aftermarket part directly caused the failure.
Installation Instructions
- Raise the vehicle on a level surface and support it safely with jack stands before removing the differential cover.
- Drain the existing differential fluid completely into a catch pan.
- Remove the differential carrier and note the original shim locations and bearing preload settings.
- Press out the old ring gear from the carrier using an appropriate gear press and protective blocks.
- Clean all mating surfaces on the carrier and housing thoroughly before proceeding.
- Press the new ring gear from the YG F8.8R-411R set onto the carrier, heating the ring gear to approximately 250 degrees F to ease fitment if necessary.
- Install the pinion with the correct depth shim and set pinion preload per Yukon specifications.
- Set carrier bearing preload and backlash to specifications in the Yukon installation guide included with YG F8.8R-411R.
- Verify tooth contact pattern using gear marking compound before final assembly.
- Reinstall the differential cover with fresh RTV or a new gasket and torque bolts to factory specification.
- Fill with the correct differential fluid type and quantity for the Ford 8.8 in. Reverse Rotation.
- Perform a proper break-in drive cycle and re-inspect the fluid level after the first 50 miles.
WARNING: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.p65warnings.ca.gov.
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