1984 GMC G2500 Differentials
Keep Your 1984 GMC G2500 in Top Shape with Quality Differentials
Whether you’re repairing or upgrading your Differential, using high-quality parts is key to keeping your 1984 GMC G2500 looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including , , and . 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 Motive Gear, National, and Driveworks. For example, Motive Gear Differentials start at just $7.99 with an average 4.0 star rating. National and Driveworks offer similar pricing and quality, backed by strong customer feedback. With over 5,424 reviews and a solid 4 star average, you can shop with confidence knowing other GMC G2500 owners approve.
Competitive Prices and Extensive Inventory
The average price for a 1984 GMC G2500 Differential at Advance Auto Parts is around $234.49, with a range that starts at $2.59 and goes up to $1,566.99. With 190 options in stock from 13 trusted brands, finding the right fit is easy. Popular picks like Axle Housing Cover Gasket Oval Shaped 10 Bolt Hole Gasket, 3 Qt – 80W90 Conventional Gear Oil With Posi Additive, and Differential Shaft Lock Bolt start at just $6.79 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 1984 GMC G2500 in peak condition, inside and out.
Essential 1984 GMC G2500 Differentials
Pro-King – Differential Cross Shaft (Part No.742G673)
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$28.49
Pro-King is the leading supplier of transmission and driveline products in the aftermarket.
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Product Features:
- Meets or exceeds OE specifications
Yukon Gear – Yoke For GM 12 Bolt Car & Truck, 1330 U/Joint Size (Part No.41152)
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$355.99
Yukon yoke for GM 12 bolt car & truck, 1330 u/joint size. 3.625″ snap ring span, 1.062″ cap diameter. Outside snap ring. All Yukon yokes come with a one year warranty against manufacturing defects.
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Product Features:
- Fits GM 12 bolt passenger car and truck
- 30 spline
- 1330 u-joint size
- Outside snap ring design
- 3.625″ snap ring span
- 1.062″ cap diameter
- U-bolt style
National – Multi-Purpose Bearing (Part No.A-36)
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$27.99
Product Features:
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- 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
Motive Gear – Pinion Nut (Part No.3752901)
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$7.99
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.
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Dorman – Rear Axle Shaft, Left Or Right (Part No.630-100A)
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$125.99
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.
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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
USA Standard Gear – Spider Gear Kit For GM 12 Bolt Car And Truck (Part No.39021)
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$161.99
Product Features:
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- Spider gear kit
- Fits GM 12 bolt passenger car and truck open differential with 30 spline axles
- Includes two side gears, two pinion gears, cross pin shaft, cross pin bolt and spider gear thrust washers.
Yukon Gear – Grizzly Locker For GM 8.5" & 8.6", 30 Spline, 2.73 & Up (Part No.28035)
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$1153.99
The Yukon Grizzly Locker is the ultimate in locking differentials for street, off-road, & drag racing. Grizzly Lockers provide 100% power to both tires, while still allowing for disengagement while negotiating turns. The Yukon Grizzly locker is a mechanical locking differential. It features 8620 internals for maximum strength. It’s patented design reduces common locker failures. All units assembled in the USA! All Grizzly Lockers are backed by the best warranty in the business! Yukon covers the replacement unit and covers any collaterally damaged parts and associated labor, up to $2,000!
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Product Features:
- Fits GM 8.5″ and 8.6″ with 30 spline axles
- 2.73 and up ratio only
- Patented internal design reduces common locker failures
- 8620 internals for added strength
- Assembled in the USA
Yukon Gear – The Carrier Bearing Puller (Part No.56072)
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$883.99
The Yukon carrier bearing Puller works with an impact gun to quickly and safely remove carrier bearings without damaging them. This unit comes with a handy bench top stand and works with up to one ton applications including Dana 70HD, Dana 80, 10.25″ & 10.5″ Ford, or GM & Chrysler 11.5″ differentials.
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Product Features:
- Carrier bearing puller
- Works with an impact gun to safely and easliy remove carrrier bearings
Motive Gear – Differential Spool (Part No.FS10-28)
Motive Gear – Differential Master Bearing Kit – Timken (Part No.R14RLMKHT)
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$186.99
Motive Gear Differential Bearing Kits Include Front & Rear Pinion Bearing, Pinion Seal, Carrier Bearings, Pilot Bearing Where Applicable, Gear Marking Compound, Crush Sleeve, Pinion Nut, Brush, Thread Locking Compound And Cover Gasket Or Rtv
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Product Features:
- 88UP 14BLT 10.5 BRG MSTR KIT 4.10
Driveworks – Oil Seal (Part No.S-2043)
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$10.79
Value-priced seal meets all cataloged application requirements.
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Product Features:
- Brand may vary by location
Yukon Gear – Minor Install Kit For GM 12 Bolt Truck Differential (Part No.12044)
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$151.99
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. (Includes Supershims).
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Product Features:
- Fits GM 12 bolt truck
- Included are a pinion seal, crush sleeve, complete shim kit, marking compound and brush.
Dorman – Help – Differential Shaft Lock Bolt (Part No.81048)
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$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.
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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
Yukon Gear – Standard Open Spider Gear Kit For GM 12 Bolt Car And Truck With 30 Spline Axles (Part No.16043)
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$207.99
Yukon standard open spider gear kit for GM 12P and 12T with 30 spline axles. Yukon uses higher quality materials and better techniques than OEM to ensure a longer lasting spider gear set. All components come with a one year warranty against manufacturing defects.
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Product Features:
- Spider gear kit
- Fits GM 12 bolt passenger car and truck open differential with 30 spline axles
- Includes two side gears, two pinion gears, cross pin shaft, cross pin bolt and spider gear thrust washers.
Yukon Gear – Chrome Cover For 8.6", 8.5" And 8.2" GM Rear (Part No.32017)
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$74.99
Chrome cover for 8.6″, 8.5″ and 8.2″ GM rear.
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Product Features:
- Fits GM 8.2″, 8.5″ and 8.6″
- Chrome
Motive Gear – Differential Mini Spool (Part No.MS10-28)
Yukon Gear – Dana 25, 27, 30, 44, Model 20 And Model 35, GM 7.5", 8.2", 8.5", 12P, 12T, C9.25 Rear Cover Bolt (Part No.33286)
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$9.99
5/16″-18 cover bolt, Dana Spicer 25, 27, 30 and 44, AMC Model 20 and Model 35, Chrysler 9.25 rear, GM 7.5″, 7.625″, 8.2″, 8.5″, 12 bolt passenger car and truck.
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Product Features:
- Cover bolt for Dana Spicer 25, 27, 30 and 44, AMC Model 20 and Model 35, GM 7.5″, 7.625″, 8.2″, 8.5″ and 12 bolt passenger car and truck.
- 1/2″ head
Yukon Gear – Pinion Depth Shims For GM 7.5", 7.75", 8.2" & 12 Bolt Truck (Part No.55008)
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$21.99
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- Pinion depth shims for GM 7.5″, 7.625″, 7.6 IFS, 7.6 IRS, 7.75″, 8.2″, 1955-1964 passenger car and 12 bolt car and truck
Yukon Gear – 8.2" & 8.5" Rear Cover Gasket (Part No.23020)
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$10.99
8.2″ & 8.5″ rear cover gasket.
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Product Features:
- Cover gasket
- Fits GM 8.2″, 8.5″ and 8.6″
Richmond Gear – RngPnnInstlKt (Part No.83-1034-B)
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$59.99
RngPnnInstlKt
Yukon Gear – Redline Synthetic "Shock Proof" Oil With Positraction Additive – 4 Quarts (Part No.15005)
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$148.99
Redline Synthetic “Shock Proof” Oil with positraction Additive. 4 Quarts.
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Product Features:
- Includes four quarts of Redline Shockproof oil and one 4oz bottle of Yukon positraction additive
USA Standard Gear – Ring & Pinion Gear Set For GM 8.5" In A 4.56 Ratio (Part No.36218)
from
$274.99
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.
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Product Features:
- Fits GM 8.5″ and 8.6″
- 8.50″ ring gear diameter
- 30 spline pinion
- 10 ring gear bolts
- 4.56 ratio
Yukon Gear – Ring Gear Bolt (Part No.33046)
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$6.99
Ring gear bolt for GM 12 bolt car & truck, 8.2″, 8.2″ for Buick/Olds/Pontiac, 63-79 Corvette & 55-62 GM Car & Truck. 3/8″ x 24.
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Product Features:
- Ring gear bolt for GM 12 bolt passenger car and truck, 1955-1964 passenger car and truck, GM 8.2″, 8.2″ Buick, Oldsmobile and Pontiac and 1963-1979 Corvette
- 3/8″ x 24 thread
National – Bearing Race (Part No.LM501314)
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$11.99
Manufactured with premium-grade steel, National taper bearing cups feature crowned raceways to ensure even load distribution.
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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
Powertrax – Grip PRO Traction System (Part No.GT436035)
from
$596.99
For vehicles that are driven daily, the Powertrax No-Slip Traction System is the latest design in quiet traction-adding differential technology. It combines the automatic street-friendly smooth operation of a limited-slip differential with the traction performance of a locking differential. The Powertrax No-Slip locker easily installs in to your differential carrier using basic tools and without affecting your ring and pinion settings. Powertrax Grip-Lok, Lock-Right Lockers and No-Slip Traction Systems automatically provide 100% traction on-demand, under the toughest circumstances. The Powertrax Grip-Pro and Grip-LS performance limited slips offer smooth dependable torque transfer and traction for the best of both worlds!
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Yukon Gear – Super Carrier Shim Kit For Ford 8.8", GM 12 Bolt Car & Truck, 8.6 & Vette (Part No.55002)
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$59.99
Product Features:
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- Super carrier shim kit for Ford 8.8″, GM 12 bolt passenger car and truck, GM 8.0″, 8.6″, 8.6″ IRS and 1963-1979 Corvette
- Interlocking design makes installation much easier
Yukon Gear – Positraction Clutch Guide (Part No.33352)
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$8.99
Positraction clutch guide.
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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
Popular 1984 GMC G2500 Differentials Categories
Most Popular Differential Bearings for 1984 GMC G2500s
Enhance your 1984 GMC G2500 with one of the 3 Differential Bearings we have in stock, starting at just $10.99.
Driveworks – Taper Bearing Cone (Part No.S-LM-501349)
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$10.99
Value-priced bearing meets all cataloged application requirements.
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Product Features:
- Brand may vary by location
Schaeffler – Bearing – TRB (Tapered Roller Bearing) (Part No.KT5)
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$21.29
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.
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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
Schaeffler – Cup (Part No.382A)
from
$20.79
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.
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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
Best-Selling 1984 GMC G2500 Differential Oil
Upgrade your G2500 with one of our 6 best-selling Differential Oil, earning an average 5 stars rating across 446 reviews.
Valvoline – MaxLife Multi-Vehicle Automatic Transmission Fluid, 1 Gallon (Part No.773775)
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.
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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
Yukon Gear – 3 Qt – 80W90 Conventional Gear Oil With Posi Additive (Part No.15003)
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$57.99
3 Qt. Penzoil 80W90 conventional gear Oil. W/ bottle of Posi additive.
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Product Features:
- Includes three quarts of conventional oil and one 4oz bottle of Yukon positraction additive
Yukon Gear – 3 Qt – Penzoil 80W90 Conventional Gear Oil (Part No.15002)
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$44.99
3 Qt. Penzoil 80W90 conventional gear Oil.
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Product Features:
- Includes three quarts of conventional oil
Yukon Gear – Redline Synthetic "Shock Proof" Oil With Positraction Additive – 4 Quarts (Part No.15005)
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$148.99
Redline Synthetic “Shock Proof” Oil with positraction Additive. 4 Quarts.
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Product Features:
- Includes four quarts of Redline Shockproof oil and one 4oz bottle of Yukon positraction additive
Yukon Gear – Redline Synthetic "Shock Proof" Oil – 3 Quarts (Part No.15000)
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$99.99
Redline Synthetic “Shock Proof” Oil. 3 Quarts.
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Product Features:
- Includes three quarts of Redline Shockproof oil
Yukon Gear – Redline Synthetic "Shock Proof" Oil – 4 Quarts (Part No.15004)
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$137.99
Redline Synthetic “Shock Proof” Oil. 4 Quarts.
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Product Features:
- Includes four quarts of Redline Shockproof oil
Top-Quality Differential Covers for 1984 GMC G2500s
Choose a high-quality OEM or aftermarket Differential Cover for GMC G2500s and enjoy top-notch performance from $21.99.
Yukon Gear – Chrome Cover For 8.6", 8.5" And 8.2" GM Rear (Part No.32017)
from
$74.99
Chrome cover for 8.6″, 8.5″ and 8.2″ GM rear.
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Product Features:
- Fits GM 8.2″, 8.5″ and 8.6″
- Chrome
Yukon Gear – Polished Aluminum Cover For 8.6", 8.2" And 8.5" GM Rear (Part No.32030)
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$255.99
Polished aluminum cover for 8.6″, 8.2″ and 8.5″ GM rear.
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Product Features:
- Fits GM 8.5″ and 8.6″
- Finned polished aluminum
Yukon Gear – Steel Cover For GM 8.2" & 8.5" Rear (Part No.32332)
Pro-King – Differential Carrier Cover (Part No.742G758A)
from
$21.99
Pro-King High Quality Differential Products are designed for trouble free installation and setup.
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Product Features:
- Meets or exceeds OE specifications
Our Top Pick for a 1984 GMC G2500 Rear Housing Cover Gasket
Invest in a
durable Rear Housing Cover Gasket for your 1984 GMC, knowing you’re getting trusted brands and expert craftsmanship.
Felpro – Axle Housing Cover Gasket Oval Shaped 10 Bolt Hole Gasket (Part No.RDS 55028-1)
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.
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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
Rear Differential Cover Gaskets for 1984 GMC G2500s
Make a smart move for your 1984 GMC G2500 with products all priced from $10.99 to $31.49.
Pro-King – Differential Cover Gasket (Part No.742G303A)
from
$31.49
Pro-King is the leading supplier of transmission and driveline products in the aftermarket.
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Product Features:
- Meets or exceeds OE specifications
Yukon Gear – 8.2" & 8.5" Rear Cover Gasket (Part No.23020)
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$10.99
8.2″ & 8.5″ rear cover gasket.
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Product Features:
- Cover gasket
- Fits GM 8.2″, 8.5″ and 8.6″
Top-Rated Differential Brands For Your 1984 GMC G2500
When it comes to finding the perfect Differential for your 1984 GMC G2500, Advance Auto Parts has you covered with a wide selection of high-quality OEM and aftermarket options from 13 trusted brands. We carry the most popular Differential brands including National, Driveworks, and Motive Gear, and more, all known for their exceptional customer ratings (average brand rating of 4.3 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 1984 GMC G2500, providing peace of mind with parts that meet or exceed OEM standards.
Popular National 1984 GMC G2500 Differentials
If you’re looking for a top-quality Differential for your 1984 GMC G2500, Advance Auto Parts has exactly what you need with our selection of National Differentials. We have 3 National Differentials in stock for this fitment, all known for their durability and precision fit. With prices starting at just $11.99 and an average cost of $24.66, you’ll find the perfect Differential for your needs and budget. National Differentials for the 1984 GMC G2500 come highly rated, with over 9 customer reviews and an impressive average rating of 4.3 stars. Choosing a National Differential from Advance Auto Parts is a smart move to ensure quality and value for your vehicle.
from
$43.99
(2)
Shaft Repair Sleeve
“As a mechanic I dont have time or money to waste on inferior products, which this is not.
Great product,great price”
Top-Quality Driveworks 1984 GMC G2500 Differentials
For those in search of a high-quality Differential for their 1984 GMC G2500, Advance Auto Parts offers a great selection of Driveworks Differentials. With 2 Driveworks 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 $10.79, with an average price of $10.89, giving you a range of options to suit your budget. Backed by over 4 customer ratings and an average rating of 4.2 stars, Driveworks Differentials provide both reliability and excellent performance. Choosing a Driveworks Differential from Advance Auto Parts is a smart investment in your vehicle’s performance and longevity.
from
$10.79
(1)
Oil Seal
“Didn’t fit my 1992 K1500 10 bolt 8.5″ ring gear rear end. Was told wrong part.”
FAQs for 1984 GMC G2500 Differentials
What are the best-selling Differentials for 1984 GMC G2500s?
Out of 190 Differentials that fit 1984 GMC G2500s, the following parts are the top sellers:
- Axle Housing Cover Gasket Oval Shaped 10 Bolt Hole Gasket (5185823) – $10.99
- 3 Qt – 80W90 Conventional Gear Oil With Posi Additive (11645418) – $57.99
- Differential Shaft Lock Bolt (5707714) – $6.79
What’s the price range for 1984 GMC G2500 Differentials?
The prices of Differentials for the 1984 GMC G2500 range from $2.59 up to $1,566.99 for the most premium parts.
What is the average price of a Differential for a 1984 GMC G2500?
The average price for Differentials for the 1984 GMC G2500 is $234.49. 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 G2500 model years?
What are the cheapest Differentials for my 1984 GMC G2500?
The cheapest 1984 GMC G2500 Differentials we carry are:
- Differential Pinion Gear Washer (10282533) – $2.59
- Ring Gear Bolt (20520168) – $2.99
- Differential Crush Sleeve (10282146) – $2.99
- Differential Ring Gear Bolt (10282159) – $2.99
- Differential Cross Shaft (10282201) – $2.99
Does Advance Auto Parts sell Differentials for any other 1984 GMC models?
Yes. We stock Differentials for 23 other popular 1984 GMC models. Some of the most popular are 1984 Jimmy Differentials, 1984 K2500 Differentials, 1984 C2500 Differentials, 1984 K1500 Differentials, and 1984 C1500 Differentials.
What types of Differentials do you sell for my 1984 GMC G2500?
As of 3/1/26, these are some of the most in-demand types of Differentials for a 1984 GMC G2500:
Can I get help with 1984 GMC G2500 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 G2500 Differentials?
Advance Auto Parts keeps returns simple. For new GMC G2500 Differentials and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.