Yukon Gear Master Overhaul Kit for Ford 8.8in IRS Rear Differential Large Bearing - Yukon Gear & Axle YK F8.8-IRS-L
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Yukon Gear Master Overhaul Kit for Ford 8.8in IRS Rear Differential Large Bearing

YUKYK F8.8-IRS-L
883584141549
Differential Overhaul Kits
59 Units In Stock
$ 347.21
$ 347.21

Yukon Gear Master Overhaul Kit for Ford 8.8in IRS Rear Differential Large Bearing is the exact Yukon Gear & Axle differential overhaul kits identified by manufacturer part number YK F8.8-IRS-L. Match the part number, vehicle, axle housing, differential, spline count, gear ratio, carrier break, position, dimensions, and intended use before ordering.

Key Features

  • The "L" in YK F8.8-IRS-L denotes the larger 3.544-inch outer diameter carrier bearing used in 2006 and newer applications.
  • The YK F8.8-IRS-L includes Timken carrier bearings with races and Timken pinion bearings with races for industry-leading performance and durability.
  • The YK F8.8-IRS-L fitment list includes multiple Shelby GT500 model years equipped with the Ford 8.8 IRS differential with the larger carrier bearing.
  • Earlier IRS differentials use a smaller carrier bearing and require a different kit.
  • The complete shim set in the YK F8.8-IRS-L supports correct setup for both OEM and aftermarket ring and pinion ratios.
  • The Ford 8.8 IRS differential requires precise pinion depth, backlash, and bearing preload settings.

Fitment

Verified catalog applications: 1989-1997 Ford Thunderbird, 1989-1997 Mercury Cougar, 1999-2012 Ford Mustang, 2002-2005 Lincoln Navigator, 2002-2010 Mercury Mountaineer, 2002-2014 Ford Expedition, 2002-2014 Ford Explorer, 2003-2005 Lincoln Aviator. Confirm axle housing, differential, spline count, gear ratio, carrier break, position, and manufacturer exclusions for the exact vehicle before ordering.

Years Make Model
1989-1997 Ford Thunderbird
1989-1997 Mercury Cougar
1999-2012 Ford Mustang
2002-2005 Lincoln Navigator
2002-2010 Mercury Mountaineer
2002-2014 Ford Expedition
2002-2014 Ford Explorer
2003-2005 Lincoln Aviator

Specifications

Brand Yukon Gear & Axle
Manufacturer Part Number YK F8.8-IRS-L
SKU YUKYK F8.8-IRS-L
UPC 883584141549
Product Type Differential Overhaul Kits
Fitment Type Vehicle Specific
Catalog Status Manufacturer Catalog Verified
Condition New

What's Included

One new Yukon Gear & Axle differential overhaul kits identified by manufacturer part number YK F8.8-IRS-L, plus only the bearings, seals, shims, fasteners, and hardware expressly supplied for this exact part number.

About Yukon Gear & Axle

Yukon Gear & Axle develops ring and pinion sets, axles, differentials, bearings, seals, installation kits, and drivetrain service components for street, towing, off-road, and performance applications.

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Frequently Asked Questions

Will Yukon Gear & Axle YK F8.8-IRS-L fit my vehicle?
Verified catalog applications: 1989-1997 Ford Thunderbird, 1989-1997 Mercury Cougar, 1999-2012 Ford Mustang, 2002-2005 Lincoln Navigator, 2002-2010 Mercury Mountaineer, 2002-2014 Ford Expedition, 2002-2014 Ford Explorer, 2003-2005 Lincoln Aviator. Confirm axle housing, differential, spline count, gear ratio, carrier break, position, and manufacturer exclusions for the exact vehicle before ordering.

What should I verify before ordering?
Verify the exact part number, vehicle, axle housing, differential, spline count, gear ratio, carrier break, bearing dimensions, position, intended use, and manufacturer exclusions.

What is included?
The package contains only the Yukon Gear & Axle components and hardware specified for part number YK F8.8-IRS-L. Related bearings, seals, fluids, tools, and service parts are sold separately unless expressly listed.

Installation

Follow Yukon Gear & Axle's current instructions for part number YK F8.8-IRS-L. Confirm all measurements and clearances, inspect mating components, set bearing preload and gear backlash where applicable, verify contact pattern, use specified lubricants and torque values, and have precision differential work completed by a qualified drivetrain technician.

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