2018 GMC Yukon Differentials

Keep Your 2018 GMC Yukon in Top Shape with Quality Differentials

Whether you’re repairing or upgrading your Differential, using high-quality parts is key to keeping your 2018 GMC Yukon looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Differential Pinion Seals, Rear Housing Cover Gaskets, and Differential Oil. Whether you’re replacing a damaged part or enhancing your truck’s style and protection, you’ll find exactly what you need to get the job done right.

Top-Rated Differentials from Trusted Brands

Looking for a reliable Differential? We’ve got you covered with options from brands you know and trust like National, Royal Purple, and Motive Gear. For example, National Differentials start at just $7.99 with an average 4.3 star rating. Royal Purple and Motive Gear offer similar pricing and quality, backed by strong customer feedback. With over 240 reviews and a solid 4 star average, you can shop with confidence knowing other GMC Yukon owners approve.

Competitive Prices and Extensive Inventory

The average price for a 2018 GMC Yukon Differential at Advance Auto Parts is around $408.46, with a range that starts at $2.99 and goes up to $3,014.99. With 88 options in stock from 14 trusted brands, finding the right fit is easy. Popular picks like DEXRON – VI ATF Full Synthetic Automatic Transmission Fluid, 1 Quart, Flex Fill Transmission & Differential Gear Oil: Full Synthetic 75W-90, 1 Quart, and Ring Gear Bolt start at just $2.99 and offer a great balance of form and function.

Explore Related Parts

While you’re upgrading or replacing your Differential, don’t forget to check out other key components like 4WD Components and Universal Joints. At Advance Auto Parts, we’re here to help you keep your 2018 GMC Yukon in peak condition, inside and out.

Essential 2018 GMC Yukon Differentials

Yukon Gear – GM 8.25" IFS Side Adjuster, ’07 & Up (Part No.33356)

GM 8.25" IFS Side Adjuster, '07 & Up

from

$78.99
Product Features:
  • Side adjuster
  • Fits GM 8.2.5″ IFS
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Yukon Gear – Master Overhaul Kit For ’79-’97 GM 9.5" Semi-Float Differential (Part No.14096)

Master Overhaul Kit For '79-'97 GM 9.5" Semi-Float Differential

from

$464.99
Yukon Master Overhaul kits give you all the high quality parts you need to start & finish every differential job. Yukon offers more tailor-made kits than any other manufacturer in the industry to meet your specific installation needs. This kit uses Timken bearings and races along with high quality seals and small parts. Included in this kit are carrier bearings and races, pinion bearings and races, pinion seal, complete shim kit, ring gear bolts, pinion nut, crush sleeve (if applicable), oil baffles and slingers (if applicable), Thread locking compound, marking compound with brush, and gasket. Yukon’s Master Overhaul kits are the most comprehensive and complete kits on the market. They do extensive research to ensure that every kit is specially tailored to your application. Includes Econ shims.

Product Features:
  • Fits 1997 and down GM 9.5″
  • Included are Timken bearings and races, pinion bearings and races, pinion seal, complete shim kit, ring gear bolts, pinion nut, crush sleeve , thread locker, marking compound with brush, and gasket.
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Dorman – 4WD Differential Housing (Part No.600-211)

4WD Differential Housing

from

$472.99
This differential housing is a direct replacement for an original unit that has failed due to impact, normal wear, insufficient lubrication, or damaged internal components. It is made of durable materials for reliable service.

Product Features:
  • Ideal solution – this differential housing is a direct replacement for an original unit that has failed due to impact, normal wear, insufficient lubrication or damaged internal components
  • Exact fit – matches the fit, function and performance of the original differential housing on specified vehicles
  • Durable construction – the housing and its internal components are made from quality materials to ensure reliable performance and long service life
  • Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
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National – Differential Pinion Seal (Part No.711033)

Differential Pinion Seal

from

$36.99
National has built a reputation as one of the most respected names in the industry. We have offered premium sealing solutions for more than 75 years. Our design team keeps pace with the industry and provides advanced solutions for today’s vehicles.

Product Features:
  • Design type: spring loaded; multi-lip
  • Temperature range: -40 Deg. F to 400 Deg. F / -40 Deg. C to 204 Deg. C
  • Excellent high temperature capabilities
  • Compatible with wide range of fluids
  • Delivers quality and reliable performance for every type of repair
See More

Yukon Gear – Redline Synthetic "Shock Proof" Oil – 3 Quarts (Part No.15000)

Redline Synthetic "Shock Proof" Oil - 3 Quarts

from

$99.99
Redline Synthetic “Shock Proof” Oil. 3 Quarts.

Product Features:
  • Includes three quarts of Redline Shockproof oil
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Yukon Gear – Standard Open Carrier Case, GM 8.25" IFS, Loaded (Part No.20131)

Standard Open Carrier Case, GM 8.25" IFS, Loaded

from

$479.99
Loaded 8.25″ standard Open carrier case. 3.42 & Up gear ratio. The deck height is different for applications with 3.08 gears.

Product Features:
  • Standard open carrier case and spiders
  • Fits GM 8.25″
  • 3.42 and up ratio only
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Yukon Gear – Pinion Nut (Part No.33147)

Pinion Nut

from

$26.99
Pinion nut for GM 7.6″ IRS, 8.6″ IRS and some Ford 9.75″, Check threads for proper fit before before installing. 22mm x 1.5mm, Uses 32mm socket.

Product Features:
  • Pinion nut for GM 7.6″ IRS and 8.6″ IRS and some Ford 9.75″
  • 22mm x 1.5 thread
  • 32mm socket
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Pro-King – Differential Pinion Shim Kit (Part No.742G202)

Differential Pinion Shim Kit

from

$6.99
Pro-King is the leading supplier of transmission and driveline products in the aftermarket.

Product Features:
  • All products are designed to meet or exceed OE quality, form, fit and funtion.
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Yukon Gear – Minor Install Kit For GM 9.5" Differential (Part No.12061)

Minor Install Kit For GM 9.5" Differential

from

$138.99
Yukon Minimum installation kits are a low cost solution for gear changes in newer vehicles where the bearings can be reused. This kit uses all high quality components to ensure a smooth set up. kit includes a pinion seal, crush sleeve (if applicable), complete shim kit, marking compound and brush.

Product Features:
  • Fits 1997 and down GM 9.5″
  • Included are a pinion seal, crush sleeve, complete shim kit, marking compound and brush.
See More

Yukon Gear – GM 8.25" IFS Side Bearing Adjuster Lock Ring, ’07 & Up (Part No.33357)

GM 8.25" IFS Side Bearing Adjuster Lock Ring, '07 & Up

from

$49.99
8.25IFS 07 & up GM side bearing adjuster lock ring.

Product Features:
  • Side adjuster lock ring
  • Fits GM 8.2.5″ IFS
See More

National – Multi-Purpose Bearing (Part No.A-36)

Multi-Purpose Bearing

from

$27.99
Product Features:
  • CONSISTENT PERFORMANCE: Matched cup and cone components ensure consistent performance
  • PREMIUM MATERIALS: Precision manufactured using premium-grade steel for outstanding durability and performance
  • SMOOTH ROTATION: Crowned raceways and rollers for even load distribution
  • OE-STYLE DESIGN: Engineered to meet OE specifications
  • COMPREHENSIVE COVERAGE: Industry-leading coverage for domestic and import applications
  • RIGOROUS TESTING: Comprehensive testing throughout design and development processes by National engineers for quality you can count on
See More

USA Standard Gear – Ring & Pinion Gear Set For GM 9.5" In A 4.56 Ratio (Part No.36226)

Ring & Pinion Gear Set For GM 9.5" In A 4.56 Ratio

from

$344.99
USA Standard ring & pinion sets are the right choice to add confidence to your install. USA Standard Gear offers a full line of ring & pinion sets for a variety of common & hard to find applications. USA standard gear offers a standard one year warranty against defects on their ring & pinion sets.

Product Features:
  • Fits GM 9.5″
  • 9.50″ ring gear diameter
  • 30 spline pinion
  • 12 ring gear bolts
  • 4.56 ratio
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Dorman – Differential Case Gasket Kit (Part No.926-817)

Differential Case Gasket Kit

from

$59.99
Ensure a leak-free repair when servicing a differential. This differential gasket is a direct replacement for the original gasket and should be replaced every time work is performed on the differential housing.

Product Features:
  • Ideal replacement – this differential directly replaces the original gasket
  • Required for routine service – this gasket should be replaced every time work is performed on the differential housing
  • Durable construction – this differential gasket is made of durable materials for leak-free performance
  • Quality tested – this gasket has been tested for a guaranteed fit
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Motive Gear – Ring Gear Bolt (Part No.14066913)

Ring Gear Bolt

from

$2.99


Product Features:
  • RING GEAR BOLT 8.5″ 7.5″ 7/16 X 20 LEFT HAND
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Dorman – Differential Cover (Part No.697-706)

Differential Cover

from

$59.99
This direct replacement differential cover matches the fit and function of the original equipment diff cover for a reliable, leak-free repair. It features a durable design, made to strict specifications, to help ensure reliable service life.

Product Features:
  • Direct replacement – this differential cover matches the fit and function of the original equipment diff cover on select vehicles
  • Reliable repair – the smart solution for fixing an existing cover that’s rusted, damaged or leaking differential fluid
  • Durable construction – this differential cover is made according to strict engineering standards to help ensure dependability
  • Trustworthy quality – backed by a team of product experts in the United States and more than a century of automotive experience
See More

Felpro – Axle Housing Cover Gasket Oval Shaped 10 Bolt Hole Gasket (Part No.RDS 55028-1)

Axle Housing Cover Gasket Oval Shaped 10 Bolt Hole Gasket

from

$10.99
Fel-Pro® gaskets are specifically designed for the repair environment to deliver a reliable seal on even the most troublesome applications. Designed for imperfect sealing surfaces and manufactured with proprietary materials, you can count on Fel-Pro for innovative sealing solutions for the real-world repair environment.

Product Features:
  • Meets or exceeds all original equipment specifications
  • Application specific design to ensure a perfect fit
  • Unsurpassed quality you can trust
  • Validated for fit, form and function
  • Each Fel-Pro gasket, no matter how small, is engineered to exacting standards with proprietary design, engineering and manufacturing processes
See More

National – Multi-Purpose Bearing (Part No.A-42)

Multi-Purpose Bearing

from

$41.99
Product Features:
  • CONSISTENT PERFORMANCE: Matched cup and cone components ensure consistent performance
  • PREMIUM MATERIALS: Precision manufactured using premium-grade steel for outstanding durability and performance
  • SMOOTH ROTATION: Crowned raceways and rollers for even load distribution
  • OE-STYLE DESIGN: Engineered to meet OE specifications
  • COMPREHENSIVE COVERAGE: Industry-leading coverage for domestic and import applications
  • RIGOROUS TESTING: Comprehensive testing throughout design and development processes by National engineers for quality you can count on
See More

Motive Gear – Crush Sleeve (Part No.1234726)

Crush Sleeve

from

$4.99
Motive Gear offers some of the toughest drive train components on the market today. If you are looking for the largest line of performance ring and pinion gear options available with gear sets in a wide range of ratios for nearly every application, both on and off-road, check out Motive Gear. Motive Gear products can be found in the winner’s circle at racing events worldwide. The superior quality of Motive Gear components is the result of years of racing development, outstanding design and state-of-the-art manufacturing methods. Extensive testing is performed on all products by our in-house engineers.
See More

MOOG – Differential Carrier Bushing (Part No.K201736)

Differential Carrier Bushing

from

$43.49
By constantly introducing design enhancements that extend product life and simplify installation and replacement, MOOG has earned its reputation as the chassis industry’s Problem Solver.

Product Features:
  • Easy to install
  • Returns like-new steering
  • Long-lasting performance
  • Construction and design validated by MOOG engineers
  • Incorporates proven design and engineering features
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Dorman – Axle Shaft (Part No.630-121)

Axle Shaft

from

$226.99
Axle shaft damaged or bearings worn out? This axle shaft directly replaces the original equipment on certain vehicles, complete with all necessary application-specific installation components.

Product Features:
  • Direct replacement – this axle shaft replaces the original equipment on specific vehicle years, makes and models
  • Complete kit – each shaft includes critical installation hardware and components needed for specific vehicle applications
  • Durable construction – designed to rigorous standards and tested to ensure performance
  • Trustworthy solution – backed by team of engineers and quality control specialists in the United States
See More

National – Bearing Race (Part No.HM89210)

Bearing Race

from

$14.99
Manufactured with premium-grade steel, National taper bearing cups feature crowned raceways to ensure even load distribution.

Product Features:
  • PREMIUM MATERIALS – Precision manufactured using premium-grade steel for outstanding durability and performance
  • SMOOTH ROTATION – Crowned raceways for even load distribution
  • OE-STYLE DESIGN – Engineered to meet OE specifications
  • COMPREHENSIVE COVERAGE – Industry-leading coverage for domestic and import applications
  • RIGOROUS TESTING – Comprehensive testing throughout design and development processes by National engineers for quality you can count on
See More

Driveworks – Camshaft Seal (Part No.S-99139)

Camshaft Seal

from

$23.99
Product Features:
  • Brand may vary by location
See More

Motive Gear – Differential Carrier (Part No.GM8.6L)

Differential Carrier

from

$221.99
Motive Gear offers some of the toughest drive train components on the market today. If you are looking for the largest line of performance ring and pinion gear options available with gear sets in a wide range of ratios for nearly every application, both o
See More

Motive Gear – Differential Carrier Shim Kit (Part No.1101)

Differential Carrier Shim Kit

from

$8.99
High-quality Differential Carrier Shim Kit

Product Features:
  • CARRIER SHIMS 12 BOLT GM CAR & TRUCK ALSO GM8.6″ 99-ON
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MOOG – Front Left Differential Support Bracket (Part No.RK643171)

Front Left Differential Support Bracket

from

$89.99
MOOG premium control arms for foreign and domestic nameplates are engineered for structural strength and corrosion protection.

Product Features:
  • EASY TO INSTALL — Precision tolerances for easy installation and steering alignment giving you a perfect fit right out of the box
  • HIGHLY PRECISE ENGINEERING — Optimized bushings for quiet operation and resistance to wear, salt, road grime and oils
  • COMPREHENSIVE COVERAGE — Available for foreign and domestic nameplates
  • Construction and design validated by MOOG engineers
  • Incorporates proven design and engineering features
See More

Dorman – Suspension Differential Mount Bushing (Part No.523-071)

Suspension Differential Mount Bushing

from

$68.99
This differential mount bushing is precision-engineered and rigorously tested to provide reliable replacement for the original equipment on specific vehicles.

Product Features:
  • Direct replacement – fits and performs like the original equipment on specific vehicles
  • Reliable fit – precision-engineered to match the design and dimensions of original components
  • Durable construction – manufactured to strict standards using sturdy, safe materials
  • Rigorously tested – thorough quality control measures ensure longevity
See More

National – Tapered Roller Bearing Cone (Part No.HM804846)

Tapered Roller Bearing Cone

from

$47.49
Manufactured with premium-grade steel, National taper bearing cones feature crowned raceways and rollers to ensure even load distribution.

Product Features:
  • PREMIUM MATERIALS – Precision manufactured using premium-grade steel for outstanding durability and performance
  • SMOOTH ROTATION – Crowned raceways and rollers for even load distribution
  • OE-STYLE DESIGN – Engineered to meet OE specifications
  • COMPREHENSIVE COVERAGE – Industry-leading coverage for domestic and import applications
  • RIGOROUS TESTING – Comprehensive testing throughout design and development processes by National engineers for quality you can count on
See More

Driveworks – Taper Bearing Cup (Part No.S-LM-501314)

Taper Bearing Cup

from

$7.99
Value-priced bearing meets all cataloged application requirements.

Product Features:
  • Brand may vary by location
See More

Most Popular Differential Pinion Seals for 2018 GMC Yukons

Enhance your 2018 GMC Yukon with one of the 5 Differential Pinion Seals we have in stock, starting at just $4.99.

National – Multi Purpose Seal (Part No.710506)

Multi Purpose Seal

from

$15.99
Product Features:
  • Design type: spring loaded; multi-lip
  • Temperature range: -40 Deg F to 225 Deg F / -40 Deg C to 107 Deg C
  • Good low temperature capability
  • Low swell in hydrocarbon fluids
  • Delivers quality and reliable performance for every type of repair
See More

Motive Gear – Pinion Seal (Part No.8610)

Pinion Seal

from

$4.99
Motive Gear offers some of the toughest drive train components on the market today. If you are looking for the largest line of performance ring and pinion gear options available with gear sets in a wide range of ratios for nearly every application, both on and off-road, check out Motive Gear. Motive Gear products can be found in the winner’s circle at racing events worldwide. The superior quality of Motive Gear components is the result of years of racing development, outstanding design and state-of-the-art manufacturing methods. Extensive testing is performed on all products by our in-house engineers.
See More

Yukon Gear – Pinion Seal For 2014 & Up GM 9.5" 12 Bolt Rear And GM 9.76" Rear (Part No.30355)

Pinion Seal For 2014 & Up GM 9.5" 12 Bolt Rear And GM 9.76" Rear

from

$48.99
Yukon Ring & Pinion sets give you the confidence of knowing you’re running gears designed for the harshest of conditions. Whether it’s on the street, off-road, or at the track; Yukon ring & pinion sets deliver unrivaled performance & quality. Yukon uses the latest designs and manufacturing technologies to provide a quiet running gear that is strong and easy to set up. All Yukon ring & pinion sets come standard with a one-year warranty.

Product Features:
  • Fits GM 7.5″ and 7.6″
  • 7.50″ ring gear diameter
  • 27 spline pinion
  • 10 ring gear bolts
  • 2.73 ratio
See More

National – Differential Pinion Seal (Part No.711033)

Differential Pinion Seal

from

$36.99
National has built a reputation as one of the most respected names in the industry. We have offered premium sealing solutions for more than 75 years. Our design team keeps pace with the industry and provides advanced solutions for today’s vehicles.

Product Features:
  • Design type: spring loaded; multi-lip
  • Temperature range: -40 Deg. F to 400 Deg. F / -40 Deg. C to 204 Deg. C
  • Excellent high temperature capabilities
  • Compatible with wide range of fluids
  • Delivers quality and reliable performance for every type of repair
See More

Driveworks – Differential Pinion Seal (Part No.S-710536)

Differential Pinion Seal

from

$20.99
Product Features:
  • Brand may vary by location
See More

Best-Selling 2018 GMC Yukon Rear Housing Cover Gaskets

Upgrade your Yukon with one of our 3 best-selling Rear Housing Cover Gaskets.

Felpro – Axle Housing Cover Gasket Irregular Shaped 10 Bolt Hole Gasket (Part No.RDS 55040)

Axle Housing Cover Gasket Irregular Shaped 10 Bolt Hole Gasket

from

$16.99
Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust.

Product Features:
  • Meets or exceeds all original equipment specifications
  • Application specific design to ensure a perfect fit
  • Unsurpassed quality you can trust
  • Validated for fit, form and function
  • Each Fel-Pro gasket, no matter how small, is engineered to exacting standards with proprietary design, engineering and manufacturing processes
See More

Felpro – Axle Housing Cover Gasket Irregular Shaped 14 Bolt Hole Gasket (Part No.RDS 55486)

Axle Housing Cover Gasket Irregular Shaped 14 Bolt Hole Gasket

from

$16.99
Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust.

Product Features:
  • Meets or exceeds all original equipment specifications
  • Application specific design to ensure a perfect fit
  • Unsurpassed quality you can trust
  • Validated for fit, form and function
  • Each Fel-Pro gasket, no matter how small, is engineered to exacting standards with proprietary design, engineering and manufacturing processes
See More

Felpro – Axle Housing Cover Gasket (Part No.55498)

Axle Housing Cover Gasket

from

$28.99
Axle Housing Cover Gasket

Top-Quality Differential Oil for 2018 GMC Yukons

Choose a high-quality OEM or aftermarket Differential Oil for GMC Yukons and enjoy top-notch performance from $14.49.

Valvoline – DEXRON – VI ATF Full Synthetic Automatic Transmission Fluid, 1 Quart (Part No.822405)

DEXRON - VI ATF Full Synthetic Automatic Transmission Fluid, 1 Quart

from

$14.49
Valvoline DEXRON-VI/MERCON LV ATF is a full-synthetic transmission fluid formulated with advanced additive technology to meet and exceed the requirements of the General Motors DEXRON-VI specification. It is officially licensed and approved by GM and is fully back-serviceable and can be used wherever DEXRON-II and/or DEXRON-III are recommended. Recommended for use in the following applications: DEXRON-VI, DEXRON-III, DEXRON-II, and Allison C-4.

Product Features:
  • Formulated with full-synthetic base stocks and advanced additive technology to meet the challenging demands of automatic transmissions
  • Enhanced anti-shudder protection for smooth shifting and maximum power transfer
  • Developed with anti-wear technology to help improve transmission durability
  • Engineered with a proprietary blend of base oils and advanced additives to provide better oil flow at low temperatures and greater film protection at higher temperatures
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Royal Purple – Max Automatic Transmission Fluid (1 Quart) (Part No.01320)

Max Automatic Transmission Fluid (1 Quart)

from

$19.49
Max ATF is a synthetic, high-performance, automatic transmission fluid. Its low co-efficient of friction and high film strength help to dramatically reduce heat and wear. Additionally, Max ATF is more oxidation stable than other transmission fluids for longer fluid life. Max ATF significantly reduces heat to extend the life of your transmission.

Product Features:
  • High performance automatic transmission fluid
  • High film strength helps to dramatically reduce heat and wear
  • Fully compatible and can be mixed with other automatic transmission fluids
  • Extends the life of your transmission
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Valvoline – Flex Fill Transmission & Differential Gear Oil: Full Synthetic 75W-90, 1 Quart (Part No.889785)

Flex Fill Transmission & Differential Gear Oil: Full Synthetic 75W-90, 1 Quart

from

$18.99
We’ve squeezed innovation into every ounce of Valvoline FlexFill SAE 75W-90 Full Synthetic Gear Oil, the ultimate gear protection in hypoid rear differentials and non-synchronized manual transmissions. Our unique new flexible pouch makes getting into the tightest places to lubricate gears easier than ever and with less waste. The superior detergent package-based formulation contains fully synthetic basestocks and special additives that help protect parts from rust and corrosion while providing exceptional high and low temperature protection and excellent thermal stability, especially in demanding driving situations such as towing and off-roading. It contains an extreme pressure additive for better load carrying capacity, wear resistance additives that assist in protecting gear teeth, a limited slip additive for optimal clutch pack performance, and an anti-foaming agent for better lubrication and service life. Valvoline FlexFill SAE 75W-90 Full Synthetic Gear Oil is recommended for use in axle applications requiring factory-fill or drain-and-fill levels for limited slip performance.

Product Features:
  • FLEXIBLE POUCH FOR EASIER USE WITH LESS WASTE in tight, hard to reach undercarriage situations.
  • EXCEPTIONAL HIGH AND LOW TEMPERATURE PROTECTION ranging from -30F to 300F degrees for dependable coverage year-round
  • REDUCES CHATTERING AND PROTECTS GEAR TEETH from oxidation, rust, and wear
  • MEETS THE DEMANDS OF CONVENTIONAL AND LIMITED SLIP REAR DIFFERENTIALS where API GL-5 is specified, as well as non-synchronized manual transmissions that require API GL-4 or MT-1 fluid
  • MEETS OR EXCEEDS PERFORMANCE REQUIREMENTS for Mack GO-H and GO-J; API GL-5 and API MT-1; MIL-PRF-2105E; and SAE J2360
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Yukon Gear – Redline Synthetic "Shock Proof" Oil With Positraction Additive – 4 Quarts (Part No.15005)

Redline Synthetic "Shock Proof" Oil With Positraction Additive - 4 Quarts

from

$148.99
Redline Synthetic “Shock Proof” Oil with positraction Additive. 4 Quarts.

Product Features:
  • Includes four quarts of Redline Shockproof oil and one 4oz bottle of Yukon positraction additive
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Yukon Gear – Redline Synthetic "Shock Proof" Oil – 3 Quarts (Part No.15000)

Redline Synthetic "Shock Proof" Oil - 3 Quarts

from

$99.99
Redline Synthetic “Shock Proof” Oil. 3 Quarts.

Product Features:
  • Includes three quarts of Redline Shockproof oil
See More

Yukon Gear – Redline Synthetic "Shock Proof" Oil – 4 Quarts (Part No.15004)

Redline Synthetic "Shock Proof" Oil - 4 Quarts

from

$137.99
Redline Synthetic “Shock Proof” Oil. 4 Quarts.

Product Features:
  • Includes four quarts of Redline Shockproof oil
See More

Valvoline – ULV ATF Full Synthetic Ultra Low Viscosity Automatic Transmission Fluid, 1 Quart (Part No.888460)

ULV ATF Full Synthetic Ultra Low Viscosity Automatic Transmission Fluid, 1 Quart

from

$18.49
Valvoline ULV is a full synthetic, ultra low viscosity transmission fluid specifically engineered for high speed automatic transmissions. Formulated to meet the performance requirements of the latest 9 & 10 speed transmission designs, including the Ford/GM 10R80 found in select Ford F-150 and Raptor trucks.

Product Features:
  • Formulated with premium synthetic base oils to achieve low viscosity and minimize deposits
  • Provides excellent thermal and oxidation performance
  • Durable friction modifiers help prevent shudder
  • Advanced anti-wear technology to better prevent gear wear
See More

Top Picks for 2018 GMC Yukon Differential Covers

Invest in one of our 2 durable Differential Covers for your 2018 GMC, knowing you’re getting trusted brands and expert craftsmanship.

aFe POWER – Differential Cover (Part No.46-71120A)

Differential Cover

from

$393.99
aFe Power’s new rear differential cover brings performance engineering to the protection of your axle’s differential. This differential cover is constructed out of durable cast aluminum with reinforcing ribs for maximum strength and comes with all necessary hardware for easy installation. This cover has a raw finish with machined fins for a distinctive look.

Product Features:
  • Durable Cast Aluminum
  • Magnetic Drain Plug Captures Loose Particles
  • Calibration Plug Set to Factory Fill Level Eliminates Overfilling
  • Built-In External and Internal Fins Dissipate Heat
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aFe POWER – Differential Cover (Part No.46-71120B)

Differential Cover

from

$514.99
aFe Power’s new rear differential cover brings performance engineering to the protection of your axle’s differential. This differential cover is constructed out of durable cast aluminum with reinforcing ribs for maximum strength and comes with all necessary hardware for easy installation. Pro Series differential covers include an oil level sight glass and magnetic deep reach fill plug. This cover is finished with black powder-coating and machined fins for a distinctive look.

Product Features:
  • Durable Cast Aluminum
  • Magnetic Drain and Fill Plugs Capture Loose Particles
  • Calibration Plug Set to Factory Fill Level Eliminates Overfilling
  • Oil Level Sight Glass for Quick/Easy Inspection
See More

Top-Rated Differential Bearings for 2018 GMC Yukons

Make a smart move for your 2018 GMC Yukon with products all priced from $9.29 to $38.99.

National – Bearing Race (Part No.LM501314)

Bearing Race

from

$9.29
Manufactured with premium-grade steel, National taper bearing cups feature crowned raceways to ensure even load distribution.

Product Features:
  • PREMIUM MATERIALS – Precision manufactured using premium-grade steel for outstanding durability and performance
  • SMOOTH ROTATION – Crowned raceways for even load distribution
  • OE-STYLE DESIGN – Engineered to meet OE specifications
  • COMPREHENSIVE COVERAGE – Industry-leading coverage for domestic and import applications
  • RIGOROUS TESTING – Comprehensive testing throughout design and development processes by National engineers for quality you can count on
See More

National – Multi-Purpose Bearing (Part No.A-36)

Multi-Purpose Bearing

from

$27.99
Product Features:
  • CONSISTENT PERFORMANCE: Matched cup and cone components ensure consistent performance
  • PREMIUM MATERIALS: Precision manufactured using premium-grade steel for outstanding durability and performance
  • SMOOTH ROTATION: Crowned raceways and rollers for even load distribution
  • OE-STYLE DESIGN: Engineered to meet OE specifications
  • COMPREHENSIVE COVERAGE: Industry-leading coverage for domestic and import applications
  • RIGOROUS TESTING: Comprehensive testing throughout design and development processes by National engineers for quality you can count on
See More

National – Tapered Roller Bearing Cone (Part No.LM501349)

Tapered Roller Bearing Cone

from

$19.99
Manufactured with premium-grade steel, National taper bearing cones feature crowned raceways and rollers to ensure even load distribution.

Product Features:
  • PREMIUM MATERIALS – Precision manufactured using premium-grade steel for outstanding durability and performance
  • SMOOTH ROTATION – Crowned raceways and rollers for even load distribution
  • OE-STYLE DESIGN – Engineered to meet OE specifications
  • COMPREHENSIVE COVERAGE – Industry-leading coverage for domestic and import applications
  • RIGOROUS TESTING – Comprehensive testing throughout design and development processes by National engineers for quality you can count on
See More

National – Tapered Roller Bearing Cone (Part No.JLM506849A)

Tapered Roller Bearing Cone

from

$38.99
Product Features:
  • PREMIUM MATERIALS: Precision manufactured using premium-grade steel for outstanding durability and performance
  • SMOOTH ROTATION: Crowned raceways and rollers for even load distribution
  • OE-STYLE DESIGN: Engineered to meet OE specifications
  • COMPREHENSIVE COVERAGE: Industry-leading coverage for domestic and import applications
  • RIGOROUS TESTING: Comprehensive testing throughout design and development processes by National engineers for quality you can count on
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FAG US – Cup (Part No.M88010)

Cup

from

$11.29
With advanced load-carrying capacity and compact design, tapered roller bearings are used in wheel bearings, transmissions, differentials, transfer cases and other miscellanous applications. FAG manufacturers over 100 million tapered roller bearings annually.

Product Features:
  • High-precision and High-quality components used in all KITs
  • Coverage of classic and new high-tech solutions for the best system coverage
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Top-Rated Differential Brands For Your 2018 GMC Yukon

When it comes to finding the perfect Differential for your 2018 GMC Yukon, Advance Auto Parts has you covered with a wide selection of high-quality OEM and aftermarket options from 14 trusted brands. We carry the most popular Differential brands including Royal Purple, National, and Motive Gear, and more, all known for their exceptional customer ratings (average brand rating of 4.8 stars) and competitive prices, as low as $7.99. Purchasing a Differential from us here at Advance Auto Parts is a smart move for both you and your 2018 GMC Yukon, providing peace of mind with parts that meet or exceed OEM standards.

Popular Royal Purple 2018 GMC Yukon Differentials

If you’re looking for a top-quality Differential for your 2018 GMC Yukon, Advance Auto Parts has exactly what you need with our selection of Royal Purple Differentials. We have 1 Royal Purple Differentials in stock for this fitment, all known for their durability and precision fit. With prices starting at just $19.49, you’ll find the perfect Differential for your needs and budget. Royal Purple Differentials for the 2018 GMC Yukon come highly rated, with over 30 customer reviews and an impressive average rating of 4.8 stars. Choosing a Royal Purple Differential from Advance Auto Parts is a smart move to ensure quality and value for your vehicle.
Max Automatic Transmission Fluid (1 Quart)
from $19.49
(30)
Max Automatic Transmission Fluid (1 Quart)
“I believe it improves car performance and maintains all running parts much better then the regular transmission fluids out there. Love this product an”

Top-Quality National 2018 GMC Yukon Differentials

For those in search of a high-quality Differential for their 2018 GMC Yukon, Advance Auto Parts offers a great selection of National Differentials. With 3 National Differentials in stock, you can trust you’re getting top-tier parts designed for durability and a perfect fit. Prices for these Differentials start at just $7.99, with an average price of $11.09, giving you a range of options to suit your budget. Backed by over 20 customer ratings and an average rating of 4.3 stars, National Differentials provide both reliability and excellent performance. Choosing a National Differential from Advance Auto Parts is a smart investment in your vehicle’s performance and longevity.
Bearing Race
from $9.29
(2)
Bearing Race
“Reasonable price and woks well. front diff 2006 Escalade esv”
Bearing Race
from $7.99
(4)
Bearing Race
“Goes with M88010 bearing cup. Application was the pinion bearing race for a Ford 9 Inch on a 1957 Ford F-100.”
Multi Purpose Seal
from $15.99
(14)
Multi Purpose Seal
“correct part easy to install”

FAQs for 2018 GMC Yukon Differentials

What are the best-selling Differentials for 2018 GMC Yukons?

Out of 88 Differentials that fit 2018 GMC Yukons, the following parts are the top sellers:

What’s the price range for 2018 GMC Yukon Differentials?

The prices of Differentials for the 2018 GMC Yukon range from $2.99 up to $3,014.99 for the most premium parts.

What is the average price of a Differential for a 2018 GMC Yukon?

The average price for Differentials for the 2018 GMC Yukon is $408.46. Keep in mind the variety of part types within our Differential category, where you are likely to find a wide range of prices across a variety of parts and components.

Does Advance Auto Parts sell Differentials for other GMC Yukon model years?

Yes, we carry Differentials for 33 model years of GMC Yukons between 1992 and 2026. The following model years are the most popular for Differential purchases: 2023, 2022, 2021, 2020, 2019, 2017, 2016, 2015, and 2014.

What are the cheapest Differentials for my 2018 GMC Yukon?

The cheapest 2018 GMC Yukon Differentials we carry are:

Does Advance Auto Parts sell Differentials for any other 2018 GMC models?

Yes. We stock Differentials for 9 other popular 2018 GMC models. Some of the most popular are 2018 Sierra 1500 Differentials, 2018 Sierra 2500 HD Differentials, 2018 Savana 2500 Differentials, 2018 Sierra 3500 HD Differentials, and 2018 Savana 3500 Differentials.

What are the top-rated Differentials that fit the 2018 GMC Yukon?

Based on 240 reviews by customers, our 2018 GMC Yukon Differentials have an average customer rating of 4 stars. These are the highest-rated categories of Differentials for the 2018 GMC Yukon and their top-rated products:

What types of Differentials do you sell for my 2018 GMC Yukon?

As of 11/2/25, these are some of the most in-demand types of Differentials for a 2018 GMC Yukon:

Can I get help with 2018 GMC Yukon Differential orders?

Contact our customer support team by chat or phone, through the help desk page, where you can find instant answers about GMC Differentials and more.

What is your return policy for GMC Yukon Differentials?

Advance Auto Parts keeps returns simple. For new GMC Yukon Differentials and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.