1999 GMC C2500 Differentials

Name: Differential Cover
Brand: Dorman
SKU: 697-703
Price: 46.99 USD
Rating: 4.5 (15 reviews)

Please Select your Vehicle to See Exact Fit Parts

Keep Your 1999 GMC C2500 in Top Shape with Quality Differentials

Whether you’re repairing or upgrading your Differential, using high-quality parts is key to keeping your 1999 GMC C2500 looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Differential Oil, Rear Housing Cover Gaskets, and Differential Bearings. 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 Dorman, Felpro, and National. For example, Dorman Differentials start at just $6.79 with an average 4.2 star rating. Felpro and National offer similar pricing and quality, backed by strong customer feedback. With over 5,884 reviews and a solid 4 star average, you can shop with confidence knowing other GMC C2500 owners approve.

Competitive Prices and Extensive Inventory

The average price for a 1999 GMC C2500 Differential at Advance Auto Parts is around $469.18, with a range that starts at $2.99 and goes up to $2,374.99. With 349 options in stock from 16 trusted brands, finding the right fit is easy. Popular picks like Taper Bearing Cone, Axle Housing Cover Gasket: Irregular Shaped 14 Bolt Hole Gasket, and Axle Housing Cover Gasket: Irregular Shaped 14 Bolt Hole Gasket start at just $8.29 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 Drive Shafts and Axles and Universal Joints. At Advance Auto Parts, we’re here to help you keep your 1999 GMC C2500 in peak condition, inside and out.

Looking for the perfect Differential for your 1999 GMC C2500? You’re in the right place. Below, you’ll find links to various types of Differentials that fit your vehicle. At Advance Auto Parts, we offer only the highest quality OEM and aftermarket Differentials, ensuring durability and a precise fit for your GMC C2500. Whether you’re driving a 1999 model or another popular model year like 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, and 2000, we’ve got you covered. Purchasing Differentials from Advance Auto Parts is a smart choice, giving you access to trusted brands and parts built to perform. Below, you’ll find links to various types of Differentials that fit your vehicle.

Essential 1999 GMC C2500 Differentials

from

$46.99

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

from

$44.99

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

from

$57.99

8.5, 9.5, & 8.2 Buick, Oldsmobile, Pontiac GM REDI sleeve yoke saver.Yukon Mighty seal.

Product Features:

Pinion Redi-sleeve
Fits GM 8.5″, 9.5″ and 8.2″ Buick, Oldsmobile and Pontiac

from

$54.99

Product Features:

MINI INST KIT GM 14BLT 10.5″ 4.10DN 1972-88

from

$131.99

Product Features:

GM9.5″ INTERNAL KIT (OPEN) 33 SPL. FRONT & REAR

from

$579.99

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, 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. This kit does not include ring gear bolts.

Product Features:

Fits 1998 and up GM 10.5″ 14 bolt truck
Included are Timken bearings and races, pinion bearings and races, pilot bearing, pinion seal, complete shim kit, pinion nut, crush sleeve , thread locker, marking compound with brush, and gasket.

from

$12.99

Product Features:

CRUSH SLEEVE 14 BOLT 10.5 (3124) 1989 UP MIN ORDER 1000

from

$6.79

This differential pinion shaft lock bolt is designed to match the fit and function of the original part on specified vehicles. Made of quality materials, it is engineered for reliable performance.

Product Features:

Direct replacement – this differential pinion shaft lock bolt matches the fit and function of the factory part on specified years, makes and models
Ideal solution – this bolt is a reliable replacement for an original part that is missing or has failed due to fatigue
Durable construction – this part is 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

from

$8.99

Positraction clutch guide.

Product Features:

Clutch guide for Chrysler 9.25″, Dana Spicer 44, Dana Spicer 50, Ford 8.8″, GM 12 bolt passenger car, GM 8.2″, 8.5″ and 8.6″, 1963-1979 Corvette and Nissan Titan
Compatible with Dura Grip positractions only

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

from

$929.99

The Yukon Dura Grip provides aggressive yet smooth traction to give you the confidence & performance you need. Get longer life and better traction with the heavy duty Yukon Dura Grip Positraction. The Yukon Dura Grip uses a nodular case and forged 4320 internals for added strength along with composite clutches for high performance and long life. All units are Rebuildable and many offer upgrades to increase aggressiveness for racing applications. Each unit carries a one year warranty against defects. This unit has larger bearing journals for added strength & uses heavy-duty carrier bearings & races.

Product Features:

Fits GM 8.5″ and 8.6″ with 30 spline axles
2.73 ratio and up only
4-spring, clutch style positraction
Internal gears are manufactured using forged 4320 steel and cut to provide stronger teeth
Fully rebuildable
Assembled in the USA

from

$561.99

Yukon spider gear set for GM 9.5″ Gura Drip posi. This kit does not include clutches. This kit fits Yukon Dura Grip ONLY.

Product Features:

Spider gear kit
Fits GM 9.5″ with Dura Grip positraction
Includes two side gears, four pinion gears, cross pin shaft, roll pin and spider gear thrust washers.

from

$28.49

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

from

$56.99

Pinion seal for ’96-’03 9.5″ GM.Yukon Mighty seal.

Product Features:

Pinion seal
Fits 1997 and up GM 9.5″

from

$10.49

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

Product Features:

Meets or exceeds OE specifications

from

$121.99

Yukon Carrier installation kits are great, low cost kit for carrier changes such as Positraction or locker upgrades. Carrier installation kit for GM 8.6″, 12 bolt car and 12 bolt truck differential. This kit contains carrier bearings, races and shims.

Product Features:

Fits GM 12 bolt passenger car and truck and 8.6″
Includes carrier bearings and races and “super” carrier shim kit

from

$11.39

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.

from

$232.99

8.5″ GM EXTRA HD standard Open case (uses larger bearings).

Product Features:

Standard open carrier case
Fits GM 8.5″ with 28 or 30 spline axles
2.73 and up ratio only
Does not include spider gears
Has larger carrier carrier bearing journals for high strength

from

$4.99

8.6″ GM standard Open side gear Thrust washer.

Product Features:

Side gear thrust washer
Fits GM 8.6″

from

$1110.00

Fits GM 10.5″ 14 bolt truck
4.10 ratio and down only
Clutch style positraction
Internal gears are manufactured using forged 4320 steel and cut to provide stronger teeth
Fully rebuildable
Assembled in the USA

from

$209.99

Yukon yoke for GM 9.5″ with a 1350 U/joint size. 3.625″ snap ring span, 1.188″ cap diameter. Outside snap ring. This yoke uses GM3920486 straps. All Yukon yokes come with a one year warranty against manufacturing defects.

Product Features:

Fits GM 9.5″
30 spline
1350 u-joint size
Outside snap ring design
3.625″ snap ring span
1.188″ cap diameter
Strap style

from

$414.99

Yukon Performance 1-3/4″ deck steel spool for 8.5″ GM with 30 spline axles. Uses large bearings, 1.785 journals. Yukon performance spools are made from the highest quality materials to ensure high strength and long life in performance applications. Spools provide 100% power to both tires at all times and are a lower cost alternative to lockers. Spools are not recommended for street driven vehicles. Yukon Performance spools come with a one year warranty against manufacturing defects. This spool requires the use of a C-Clip eliminator kit to be used.

Product Features:

Fits GM 8.5″ with 30 spline axles
2.73 and up ratios only
Provides 100% traction to both wheels at all times
Not recommended for street driven vehicles

from

$7.99

Differential Cover B

from

$205.99

Product Features:

GM 12BL 8.875 R/P 3.42 MG

from

$59.99

Product Features:

Super carrier shim kit for Ford 7.5″, GM 7.5″, 7.625″, 7.6″ IFS, 7.6″ IRS, 7.75″, 8.2″, 8.2″ Buick, Oldsmobile and Pontiac and GM 8.5″ front and rear
Interlocking design makes installation much easier

from

$28.99

9.5 Standard Open Pinion gear Thrust Washer.

Product Features:

Pinion gear thrust washer
Fits GM 9.5″

from

$8.29

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
Engineered for the sealing repair environment
Validated for fit, form and function
Unsurpassed quality you can trust

Popular 1999 GMC C2500 Differentials Categories

Differential Oil

Rear Differential Cover Gaskets

Differential Open Unit and Components

Differential Covers

Differential Pinion Shaft Lock Bolts

Differential Bearings

Differential Axle Shafts

Differential Pinion Pilot Bearings

Differential Cover Bolts

Differential Carriers

Differential Bearing Kits

Front Differential Pinion Bearings

Differential Spider Gear Kits

Differential Rebuild Kits

Differential Carrier Shim Kits

Differential Pinion Seals

Differential Clutch Packs

Differential Ring and Pinions

Differential Cases

Differential End Yokes

Differential Lock Assemblies

Rear Differential Pinion Bearings

Differential Spools

Differential Carrier Bearings

Rear Housing Cover Gaskets

Differential Pinion Bearing Kits

Differential Ring Gear Bolts

Bearing Race Drivers

Differential Carrier Bearing Shims

Differential Crush Sleeves

Differential Side Bearing Spacers

Differential Pinion Shims

Differential Pinion Shaft Nuts

Differential Gear Install Kits

Differential Cross Pins

Differential Side Gear Thrust Washers

Differential Pinion Gear Thrust Washers

Differential Drive Pinion Gear Bearing Retainer Bolts

Differential Ring and Pinion Kits

Limited Slip Differential Assemblies

Differential Spider and Pinion Gear Kits

Differential Clutch Pack Clips

Axle Differential Bearing and Race Set

Most Popular Differential Oil for 1999 GMC C2500s

Enhance your 1999 GMC C2500 with one of the 8 Differential Oil we have in stock, starting at just $12.49.

show more show less

from

$35.99

Valvoline MaxLife Multi-Vehicle ATF is a full-synthetic formulation with advanced additives to prevent the major causes of transmission breakdown and help extend transmission life. Developed to help prevent leaks, maximize transmission performance, reduce transmission wear, and maintain smooth shifting longer than conventional fluids. It is suitable for use in a broad range of ATF applications including most Ford, GM, Toyota, Honda, Nissan, Hyundai, BMW, Mercedes, Volvo, VW & Audi. Recommended for use in the following applications: GM DEXRON-II, DEXRON-III, DEXRON-VI, Ford MERCON LV, Toyota/Lexus Type T, T-II, T-IV, WS, Honda/Acura, ATF-Z1, Nissan/Infiniti Matic-D, Matic-J, Matric-K, Matic-S, Hyundai/Kia SP-II, SP-III, SP-IV, SPH-IV, BMW 7045E, ETL 8072B, LA2634, LT71141, Allison C-4, Mercedes Benz NAG-1, Volvo 1161521, 1161540, 97340, 1273.41, and VW/Audi G-052-025-A2, G-052-162-A1. For CVT applications Valvoline recommends Valvoline Full Synthetic CVT Fluid.

Product Features:

Formulated with full-synthetic base oils and long life friction modifiers to help improve smooth shifting, eliminate slippage and shudder, prevent clutch wear and improve drivability longer than conventional fluids
High-performance seal conditioners maintain and preserve the elasticity of seals to help prevent leaks in high mileage transmissions
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

from

$12.49

Designed for certain manual transaxles and manual transmissions used by General Motors or Chrysler, Pennzoil Synchromesh fluid provides excellent oxidation stability and low-temperature performance. It’s formulated with high-quality paraffinic base stocks, a fluidity modifier, multifunctional performance additives, corrosion inhibitors, a foam suppressor, and a shear stable viscosity index improver additive. Pennzoil Synchromesh also offers excellent synchronizer performance and compatibility with yellow metals (such as bronze, brass, and copper components found in manual transaxles and transmissions). This product will satisfactorily lubricate General Motors or Chrysler manual transaxles and transmissions from -40 degrees C to +150 degrees C.

Product Features:

Transmission fluid designed for certain manual transaxles and manual transmissions used by General Motors or Chrysler
Excellent low-temperature performance and oxidation stability
Excellent synchronizer performance
Excellent compatibility with yellow metals such as bronze, brass, and copper components found in manual transaxles and transmissions
Formulated with high-quality paraffinic base stocks, a fluidity modifier, and multifunctional performance additives
Meets GM Specification 998564; suitable for use in GM manual transaxles and transmissions requiring GM Part No. 12345349 or 12345577
Meets Chrysler specification MS-9224; suitable for use in Chrysler transaxles and transmissions requiring Part No. 0487446
For a full list of equipment approvals and recommendations, please consult your local Shell Technical Help Desk and always consult your owner’s manual

from

$57.99

3 Qt. Penzoil 80W90 conventional gear Oil. W/ bottle of Posi additive.

Product Features:

Includes three quarts of conventional oil and one 4oz bottle of Yukon positraction additive

from

$44.99

3 Qt. Penzoil 80W90 conventional gear Oil.

Product Features:

Includes three quarts of conventional oil

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

from

$99.99

Redline Synthetic “Shock Proof” Oil. 3 Quarts.

Product Features:

Includes three quarts of Redline Shockproof oil

from

$137.99

Redline Synthetic “Shock Proof” Oil. 4 Quarts.

Product Features:

Includes four quarts of Redline Shockproof oil

from

$28.99

Castrol® Transmax® ATF/CVT Universal is a premium full-synthetic transmission fluid engineered for exceptional performance in both traditional step-shifting automatic transmissions and modern continuously variable transmissions (CVTs). Featuring Castrol Smooth Drive® Technology, it ensures enhanced friction durability for seamless gear shifts and superior high-temperature protection to resist oxidation. This advanced formulation offers unmatched protection against copper corrosion, extending the life of your transmission system. Its broad compatibility covers a wide range of ATF and CVT applications, including Dexron VI, Mercon LV, Toyota WS, Honda DW-1, Nissan Matic S, and many more, making it ideal for diverse vehicle types, including hybrids. Designed to improve workshop efficiency and simplify inventory management, this fluid is a versatile solution for professional mechanics and DIY enthusiasts alike. Packaged in a convenient 1-gallon size, it delivers outstanding value and reliability for maintaining optimal transmission performance.

Product Features:

Enhanced friction durability for smooth transmission performance
Superior high temperature protection to effectively resist oxidation
Unsurpassed protection against copper corrosion
Broad scope of vehicle applications improves workshop efficiency and inventory management
ATF Applications: Dexron VI (Dexron III, Dexron), Mercon LV (Mercon SP, Mercon V, Mercon), JASO 1A (03), JASO 1A LV (13), Toyota T IV, Toyota T III, Toyota WS, Honda/Acura DW 1/Z 1, Nissan Matic D, Matic J, Matic S, Hyundai/Kia SP IV, SP III
ATF Applications: Mazda ATF M-V, M-III, FZ, Mitsubishi SP IV, SP III, IIM, II, PA, J3, VW/Audi (6, 8 & 9 speed automatics), BMW/Mini (6, 8 and 9 speed automatics), Jaguar/Land Rover (6, 8 & 9 speed automatics), Porsche (6, 8 & 9 speed automatics)
ATF Applications: Volvo (6, 8 and 9 speed automatics), Volvo Transmission Oil 97342, AT102, Mercedes-Benz (7 and 9 speed automatics)
CVT Applications: Toyota CVT Fluid TC, Toyota CVT Fluid FE , Nissan CVT Fluid NS-1, Nissan CVT Fluid NS-2, Nissan CVT Fluid NS-3, Subaru i-CVT Fluid, Subaru i-CVT FG, Subaru Lineartronic High Torque Chain CVTF, Honda HCF-2

Best-Selling 1999 GMC C2500 Rear Housing Cover Gasket

Upgrade your C2500 with our best-selling Rear Housing Cover Gasket with a 4.5 Starts rating across 13 reviews.

show more show less

from

$8.29

Meets or exceeds all original equipment specifications
Application specific design to ensure a perfect fit
Engineered for the sealing repair environment
Validated for fit, form and function
Unsurpassed quality you can trust

Top-Quality Differential Bearings for 1999 GMC C2500s

Choose a high-quality OEM or aftermarket Differential Bearing for GMC C2500s and enjoy top-notch performance from $13.99.

show more show less

from

$13.99

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

from

$15.49

Value-priced bearing meets all cataloged application requirements.

Product Features:

Brand may vary by location

from

$46.99

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

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

from

$21.29

High-precision and High-quality components used in all KITs
Coverage of classic and new high-tech solutions for the best system coverage

from

$20.79

High-precision and High-quality components used in all KITs
Coverage of classic and new high-tech solutions for the best system coverage

Top Picks for 1999 GMC C2500 Rear Differential Cover Gaskets

Invest in one of our 5 durable Rear Differential Cover Gaskets for your 1999 GMC, knowing you’re getting trusted brands and expert craftsmanship.

show more show less

from

$8.99

Meets or exceeds all original equipment specifications
Application specific design to ensure a perfect fit
Engineered for the sealing repair environment
Validated for fit, form and function
Unsurpassed quality you can trust

from

$13.99

14T cover gasket.

Product Features:

Cover gasket
Fits GM 10.5″ 14 bolt truck

from

$13.99

9.5″ GM cover gasket.

Product Features:

Cover gasket
Fits GM 9.5″

from

$10.99

8.2″ & 8.5″ rear cover gasket.

Product Features:

Cover gasket
Fits GM 8.2″, 8.5″ and 8.6″

from

$3.99

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

Product Features:

Meets or exceeds OE specifications

Top-Rated Differential Covers for 1999 GMC C2500s

Make a smart move for your 1999 GMC C2500 with products all priced from $40.99 to $354.99.

show more show less

from

$63.99

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

from

$46.99

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

from

$74.99

Chrome cover for 8.6″, 8.5″ and 8.2″ GM rear.

Product Features:

Fits GM 8.2″, 8.5″ and 8.6″
Chrome

from

$93.99

Steel cover for GM 9.5″ Threaded for fill plug, fill plug not included.

Product Features:

Fits GM 9.5″
Steel

from

$255.99

Polished aluminum cover for 8.6″, 8.2″ and 8.5″ GM rear.

Product Features:

Fits GM 8.5″ and 8.6″
Finned polished aluminum

from

$123.99

Product Features:

Fits GM 8.2″, 8.5″ and 8.6″
Steel

from

$92.99

Product Features:

Fits GM 10.5″ 14 bolt truck
Steel

from

$59.99

Chrome cover for GM 14T.

Product Features:

Fits GM 10.5″ 14 bolt truck
Chrome

from

$40.99

DIFF COVER KIT

from

$354.99

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 A356-T6 cast aluminum with reinforcing ribs for maximum strength. Mounting hardware is included for a hassle-free installation. An oil level sight glass and calibration plug set to the factory level prevents overfilling of the differential. A magnetic drain plug and a deep reach magnetic fill plug are provided for maximum protection. This cover is finished in black powder-coating with machined fins for a distinctive look. 4 Quart Gear Oil Capacity: This cover has about a 4 quart gear oil capacity at the factory fill level, factory cover holds about 3 quarts. Built-in External Fins: Built-in external fins transfer heat from the fluid to the outside air for maximum cooling. Magnetic Drain/Fill Plug: This system incorporates a magnetic drain and deep reach fill plug that captures loose particles for maximum rear-end protection. Oil Level Sight Glass: Large oil level sight glass with 1/8” NPT calibration plug set to the factory fluid level to eliminate overfilling. When it comes to engineering for power, performance, protection and value, aFe Power is the only choice.

Product Features:

Constructed of Durable A356 Die Cast Aluminum
Reinforcing Ribs and Black Powder coating w/Machined Fins
Magnetic Drain and Fill Plugs Capture Loose Particles
Large Oil Level Sight Glass w/ Calibration Plug

from

$298.99

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 A356-T6 cast aluminum with reinforcing ribs for maximum strength. Mounting hardware is included for a hassle-free installation. A calibration plug set to the factory level prevents overfilling of the differential. A magnetic drain plug and a deep reach magnetic fill plug are provided for maximum protection. This cover has a raw finish with machined fins for a distinctive look. 4 Quart Gear Oil Capacity: This cover has about a 4 quart gear oil capacity at the factory fill level, factory cover holds about 3 quarts. Built-in External Fins: Built-in external fins transfer heat from the fluid to the outside air for maximum cooling. Magnetic Drain/Fill Plug: This system incorporates a magnetic drain and deep reach fill plug that captures loose particles for maximum rear-end protection. Oil Level calibration plug: A 1/8″ NPT calibration plug is set to the factory fluid level which eliminates accidental overfilling. When it comes to engineering for power, performance, protection and value, aFe Power is the only choice.

Product Features:

Constructed of Durable A356-T6 Cast Aluminum
Reinforcing Ribs w/ a Raw Finish and Machined Fins
Magnetic Drain and Fill Plugs Capture Loose Particles
Calibration Plug Set to Factory Fluid Level

Top-Rated Differential Brands For Your 1999 GMC C2500

When it comes to finding the perfect Differential for your 1999 GMC C2500, Advance Auto Parts has you covered with a wide selection of high-quality OEM and aftermarket options from 16 trusted brands. We carry the most popular Differential brands including Felpro, National, and Dorman, and more, all known for their exceptional customer ratings (average brand rating of 4.6 stars) and competitive prices, as low as $6.79. Purchasing a Differential from us here at Advance Auto Parts is a smart move for both you and your 1999 GMC C2500, providing peace of mind with parts that meet or exceed OEM standards.

Popular Felpro 1999 GMC C2500 Differentials

If you’re looking for a top-quality Differential for your 1999 GMC C2500, Advance Auto Parts has exactly what you need with our selection of Felpro Differentials. We have 2 Felpro Differentials in stock for this fitment, all known for their durability and precision fit. With prices starting at just $8.29 and an average cost of $8.64, you’ll find the perfect Differential for your needs and budget. Felpro Differentials for the 1999 GMC C2500 come highly rated, with over 33 customer reviews and an impressive average rating of 4.6 stars. Choosing a Felpro Differential from Advance Auto Parts is a smart move to ensure quality and value for your vehicle.

from $8.29

(13)

Axle Housing Cover Gasket: Irregular Shaped 14 Bolt Hole Gasket

“works good”

from $8.99

(20)

Axle Housing Cover Gasket: Irregular Shaped 14 Bolt Hole Gasket

“Perfect fit”

Top-Quality National 1999 GMC C2500 Differentials

For those in search of a high-quality Differential for their 1999 GMC C2500, Advance Auto Parts offers a great selection of National Differentials. With 2 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 $13.99, with an average price of $21.49, giving you a range of options to suit your budget. Backed by over 11 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.

from $28.99

(5)

Multi-Purpose Seal

“How do you fix a leaking rear end? You seal it. That’s why I bought this seal.”

from $13.99

(6)

Bearing Race

“Fit perfectly. No difficulty replacing my old ones.”

FAQs for 1999 GMC C2500 Differentials

What are the best-selling Differentials for 1999 GMC C2500s?

Out of 349 Differentials that fit 1999 GMC C2500s, the following parts are the top sellers:

Taper Bearing Cone (5051614) – $15.49
Axle Housing Cover Gasket: Irregular Shaped 14 Bolt Hole Gasket (5723531) – $8.29
Axle Housing Cover Gasket: Irregular Shaped 14 Bolt Hole Gasket (3215601) – $8.99

What’s the price range for 1999 GMC C2500 Differentials?

The prices of Differentials for the 1999 GMC C2500 range from $2.99 up to $2,374.99 for the most premium parts.

What is the average price of a Differential for a 1999 GMC C2500?

The average price for Differentials for the 1999 GMC C2500 is $469.18. 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 C2500 model years?

Yes, we carry Differentials for 19 model years of GMC C2500s between 1979 and 2000. The following model years are the most popular for Differential purchases: 2000, 1998, 1997, 1996, 1995, 1994, 1993, 1992, and 1991.

What are the cheapest Differentials for my 1999 GMC C2500?

The cheapest 1999 GMC C2500 Differentials we carry are:

Differential Crush Sleeve (20520169) – $2.99
Differential Cover Gasket (10282461) – $3.99
Differential Crush Sleeve (10593146) – $3.99
8.6" GM Standard Open Side Gear Thrust Washer (11642509) – $4.99
Crush Sleeve For GM 7.6" IRS, 8.5", 8.6", 8.75", 8.875" & Nissan Titan Rear – Approx 0.620" Long (11643342) – $5.99

Does Advance Auto Parts sell Differentials for any other 1999 GMC models?

Yes. We stock Differentials for 23 other popular 1999 GMC models. Some of the most popular are 1999 Yukon Differentials, 1999 Sierra 1500 Differentials, 1999 Savana 1500 Differentials, 1999 Savana 2500 Differentials, and 1999 Jimmy Differentials.

What types of Differentials do you sell for my 1999 GMC C2500?

As of 3/1/26, these are some of the most in-demand types of Differentials for a 1999 GMC C2500:

Can I get help with 1999 GMC C2500 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 C2500 Differentials?

Advance Auto Parts keeps returns simple. For new GMC C2500 Differentials and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.

1999 GMC C2500 Differentials

Dorman – Differential Cover (Part No.697-703)

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

Yukon Gear – Redi Sleeve For GM 8.5", 9.5" & 8.2" Bop Yokes (Part No.30229)

Motive Gear – Differential Gear Install Kit (Part No.GM10.5IK)

Motive Gear – Differential Carrier Gear Kit (Part No.GM9.5BI)

Yukon Gear – Master Overhaul Kit For GM ’98 And Newer 14T Differential (Part No.14072)

Motive Gear – Differential Crush Sleeve (Part No.26008741)

Dorman – Help – Differential Shaft Lock Bolt (Part No.81048)

Yukon Gear – Positraction Clutch Guide (Part No.33352)

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

Yukon Gear – Dura Grip Positraction For GM 8.5" & 8.6" With 30 Spline Axles (Part No.26016)

Yukon Gear – Spider Gear Set For GM 9.5" Gura Drip Posi (Part No.16166)

National – Bearing Race (Part No.HM903210)

Yukon Gear – Pinion Seal For ’96-’03 9.5" GM (Part No.30164)

Pro-King – Differential Pinion Nut (Part No.744A961)

Yukon Gear – 8.6" GM 12P 12T & F8.8 Carrier Installation Kit (Part No.57010)

Motive Gear – Differential Ring Gear Bolt (Part No.14012703)

Yukon Gear – 8.5" GM Extra HD Standard Open Case (Uses Larger Bearings) (Part No.20084)

Yukon Gear – 8.6" GM Standard Open Side Gear Thrust Washer (Part No.33386)

Yukon Gear – Dura Grip Positraction For 10.5" GM 14 Bolt Truck, 4.10 & Down (Part No.26030)

Yukon Gear – Yoke For GM 9.5" With A 1350 U/Joint Size (Part No.41077)

Yukon Gear – Steel Spool For GM 8.5" & 8.6" With 30 Spline Axles (Part No.32193)

Yukon Gear – Differential Cover B (Part No.33572)

Motive Gear – Differential Ring and Pinion (Part No.GM12-342)

Yukon Gear – Super Carrier Shim Kit For Ford 7.5", GM 7.5", 8.2" & 8.5" (Part No.55001)

Yukon Gear – 9.5 Standard Open Pinion Gear Thrust Washer (Part No.33374)

Felpro – Axle Housing Cover Gasket: Irregular Shaped 14 Bolt Hole Gasket (Part No.RDS 55063)

Valvoline – MaxLife Multi-Vehicle Automatic Transmission Fluid, 1 Gallon (Part No.773775)

Pennzoil – Synchromesh Manual Transmission Fluid, Enhances Synchronizer Performance (Part No.3501)

Yukon Gear – 3 Qt – 80W90 Conventional Gear Oil With Posi Additive (Part No.15003)

Yukon Gear – 3 Qt – Penzoil 80W90 Conventional Gear Oil (Part No.15002)

Yukon Gear – Redline Synthetic "Shock Proof" Oil With Positraction Additive – 4 Quarts (Part No.15005)

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

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

Castrol – Transmax ATF/CVT Universal Transmission Fluid, Smooth Performance, 1 Gallon (Part No.15E0C8)

Felpro – Axle Housing Cover Gasket: Irregular Shaped 14 Bolt Hole Gasket (Part No.RDS 55063)

National – Bearing Race (Part No.382A)

Driveworks – Taper Bearing Cone (Part No.S-LM-102949)

Schaeffler – Cone (Part No.K387-A)

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

Schaeffler – Bearing – TRB (Tapered Roller Bearing) (Part No.KT5)

Schaeffler – Cup (Part No.382A)

Felpro – Axle Housing Cover Gasket: Irregular Shaped 14 Bolt Hole Gasket (Part No.RDS 55387)

Yukon Gear – GM 10.5′ 14 Bolt Truck Cover Gasket (Part No.23016)

Yukon Gear – 9.5" GM Cover Gasket (Part No.23023)

Yukon Gear – 8.2" & 8.5" Rear Cover Gasket (Part No.23020)

Pro-King – Differential Cover Gasket (Part No.743B303)

Dorman – Differential Cover (Part No.697-711)

Dorman – Differential Cover (Part No.697-703)

Yukon Gear – Chrome Cover For 8.6", 8.5" And 8.2" GM Rear (Part No.32017)

Yukon Gear – Steel Cover For GM 9.5", Threaded For Fill Plug, Plug Not Included (Part No.32333)

Yukon Gear – Polished Aluminum Cover For 8.6", 8.2" And 8.5" GM Rear (Part No.32030)

Yukon Gear – Steel Cover For GM 8.2" & 8.5" Rear (Part No.32332)

Yukon Gear – Steel Cover For GM 10.5" 14 Bolt Truck (Part No.32345)

Yukon Gear – Chrome Cover For 10.5" GM 14 Bolt Truck (Part No.32013)

ATP – DIFF COVER KIT (Part No.111104)

aFe POWER – Differential Cover (Part No.46-70372)

aFe POWER – Differential Cover (Part No.46-70370)