1973 GMC C25/C2500 Suburban Differentials

Keep Your 1973 GMC C25/C2500 Suburban in Top Shape with Quality Differentials

Whether you’re repairing or upgrading your Differential, using high-quality parts is key to keeping your 1973 GMC C25/C2500 Suburban looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Differential Covers, Rear Differential 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 Valvoline, Richmond Gear, and National. For example, Valvoline Differentials start at just $14.49 with an average 4.8 star rating. Richmond Gear and National offer similar pricing and quality, backed by strong customer feedback. With over 431 reviews and a solid 4 star average, you can shop with confidence knowing other GMC C25/C2500 Suburban owners approve.

Competitive Prices and Extensive Inventory

The average price for a 1973 GMC C25/C2500 Suburban Differential at Advance Auto Parts is around $227.36, with a range that starts at $0.91 and goes up to $1,141.99. With 143 options in stock from 12 trusted brands, finding the right fit is easy. Popular picks like DEXRON – VI ATF Full Synthetic Automatic Transmission Fluid, 1 Quart, DEX/MERC ATF Conventional Automatic Transmission Fluid, 1 Quart, and Bearing Race start at just $10.99 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 Drive Shafts and Axles and Universal Joints. At Advance Auto Parts, we’re here to help you keep your 1973 GMC C25/C2500 Suburban in peak condition, inside and out.

Essential 1973 GMC C25/C2500 Suburban Differentials

Motive Gear – Differential Gear Install Kit (Part No.GM12IK)

Differential Gear Install Kit

from

$69.99


Product Features:
  • MINI INSTALL KIT GM 12BLT 8.875 TRUCK
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Powertrax – Grip LOK Traction System (Part No.LK444430)

Grip LOK Traction System

from

$658.99
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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Powertrax – No-Slip Traction System (Part No.9207853005)

No-Slip Traction System

from

$544.99
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!The Powertrax® Lock-Right Locker provides outstanding traction for off-road machines and race vehicles. Powertrax No-Slip Traction Systems deliver excellent performance to street-driven cars and trucks.
  • Powertrax® lockers range from the original, Lock-Right for serious straight-line performance, to the No-Slip traction system for street-able vehicles.
  • Powertrax® offers three levels of GRIP locking differentials, ranging from the clutch-type GRIP LS with a forged steel case, the gear-driven GRIP PRO and finally the GRIP LOK for extreme traction.
  • Powertrax® = Extreme Traction Systems!
  • See More

    Yukon Gear – The Carrier Bearing Puller (Part No.56072)

    The Carrier Bearing Puller

    from

    $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.

    Product Features:
    • Carrier bearing puller
    • Works with an impact gun to safely and easliy remove carrrier bearings
    See More

    Yukon Gear – Standard Open Cross Pin Shaft For Four Pinion Design For GM 10.5" 14 Bolt Truck (Part No.33405)

    Standard Open Cross Pin Shaft For Four Pinion Design For GM 10.5" 14 Bolt Truck

    from

    $89.99
    Standard Open cross pin shaft for four pinion design for GM 14T.

    Product Features:
    • Cross pin shaft
    • Fits GM 10.5″ 14 bolt truck
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    Motive Gear – Differential Bearing Kit – Timken (Part No.RA29RT)

    Differential Bearing Kit - Timken

    from

    $184.99
    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

    Product Features:
    • DANA-60 TIMKEN – UP TO ’98 FORD
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    National – Bearing Race (Part No.HM88610)

    Bearing Race

    from

    $15.49
    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
    See More

    Motive Gear – Differential Carrier Shim Kit (Part No.1106)

    Differential Carrier Shim Kit

    from

    $18.99


    Product Features:
    • CARRIER SHIM-DANA 60 & 70
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    Mr. Gasket – Differential Gasket (Part No.84B)

    Differential Gasket

    from

    $20.99
    Mr. Gasket Axle Housing/Differential Cover or Rear End Gaskets are manufactured from a .047 inch thick cellulose/nitrile composite gasket material for excellent sealing and durability. They are precision die-cut for an excellent fit. Fits 1964-1970 Chevrolet 8.2 inch 10 bolt & 1970-1981 GM 8.5 inch ring gear

    Product Features:
    • .047″ thick cellulose/nitrile composite gasket material
    • Precision die cut
    • Reusable
    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
    See More

    Yukon Gear – Eaton Positraction Shim Kit For 10.5" GM 14 Bolt Truck (Part No.16113)

    Eaton Positraction Shim Kit For 10.5" GM 14 Bolt Truck

    from

    $78.99
    Eaton positraction shim kit for GM 14T.

    Product Features:
    • Shim kit
    • Fits GM 10.5″ 14 bolt truck Eaton positraction
    See More

    Powertrax – Grip PRO Traction System (Part No.GT436035)

    Grip PRO Traction System

    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!
    See More

    USA Standard Gear – Standard Spider Gear Set For GM 10.5" 14 Bolt Truck (Part No.39022)

    Standard Spider Gear Set For GM 10.5" 14 Bolt Truck

    from

    $318.99
    Product Features:
    • Spider gear kit
    • Fits GM 10.5″ 14 bolt truck open differential
    • Includes two side gears, four pinion gears, cross pin shaft, roll pin and spider gear thrust washers.
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    Richmond Gear – MiniSpool (Part No.78-1230-1)

    MiniSpool

    from

    $151.99
    MiniSpool

    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

    Yukon Gear – Bearing Race Driver (Part No.56020)

    Bearing Race Driver

    from

    $215.99
    Bearing race driver. No return.

    Product Features:
    • Bearing race driver
    • Fits M802011 race
    • All steel construction
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    Yukon Gear – 10.5" GM 14 Bolt Truck Crush Sleeve (Part No.33108)

    10.5" GM 14 Bolt Truck Crush Sleeve

    from

    $7.99
    10.5″ GM 14 bolt truck crush sleeve, 1988 & OLDER. Approx 0.825″ long.

    Product Features:
    • Crush sleeve for 1988 and down GM 10.5″ 14 bolt truck
    • 0.825″ tall
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    Motive Gear – Differential Spool (Part No.FSD60-35H)

    Differential Spool

    from

    $186.99


    Product Features:
    • FULL SPOOL DANA 60 35 SPLINE 4.10 & DOWN
    See More

    Yukon Gear – Pinion Install Kit For ’88 And Older 10.5" GM 14 Bolt Truck Differential (Part No.13058)

    Pinion Install Kit For '88 And Older 10.5" GM 14 Bolt Truck Differential

    from

    $349.99
    Yukon Pinion installation kits are a terrific solution for gear installation on lower mileage vehicles where the carrier bearings & races can be reused. This kit uses Timken bearings and races along with a high quality pinion seal and small parts. Included in this kit are the pinion bearings and races, pilot bearing (if applicable), crush sleeve (if applicable), complete pinion shim kit, thread locker, and marking compound with brush. Yukon does extensive research for each application to make sure your kit will arrive with all the correct parts you need to install your pinion gear.

    Product Features:
    • Fits 1988 and down GM 10.5″ 14 bolt truck
    • Included are pinion bearings and races, pinion seal, crush sleeve, complete pinion shim kit, and marking compound with brush.
    See More

    National – Multi-Purpose Bearing (Part No.R-1581-TV)

    Multi-Purpose Bearing

    from

    $33.99
    National Oil Seals & Bearings offer a full line of premium oil seals and bearings.

    Product Features:
    • PREMIUM MATERIALS — Precision manufactured using premium-grade steel for outstanding durability and performance
    • STRONG AND DURABLE — Controlled heat treatment process for strength and durability
    • 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 – Bearing Race (Part No.HM88510)

    Bearing Race

    from

    $11.79
    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

    Yukon Gear – 14T Pinion Gear Thrust Washer (Part No.33384)

    14T Pinion Gear Thrust Washer

    from

    $8.99
    14T pinion gear Thrust washer.

    Product Features:
    • Pinion gear thrust washer
    • Fits GM 10.5″ 14 bolt truck
    See More

    Motive Gear – Differential Ring and Pinion (Part No.D60-354)

    Differential Ring and Pinion

    from

    $275.99


    Product Features:
    • DANA-60 R/P 3.54 STD MG 24813-5X (USES PRE-LOAD SHIMS)
    See More

    Yukon Gear – 10.5" GM 14 Bolt Truck Pinion Nut (Part No.33148)

    10.5" GM 14 Bolt Truck Pinion Nut

    from

    $48.99
    10.5″ GM 14 bolt truck pinion nut. 1 1/2″ socket, 15/16″ x 16 thread.

    Product Features:
    • Pinion nut for GM 10.5″ 14 bolt truck
    • 15/16″ x 16 thread
    • 1.5″ socket
    See More

    Dorman – Differential Pinion Yoke Assembly (Part No.697-544)

    Differential Pinion Yoke Assembly

    from

    $183.99
    Worn or damaged differential end yoke causing driveline vibrations? This direct replacement end yoke matches the original equipment part for a trustworthy repair and reliable performance.

    Product Features:
    • Direct replacement – this differential end yoke matches the fit and construction of the original yoke
    • Excellent value – this replacement end yoke offers original equipment quality at a fraction of the price of dealer parts
    • Quality materials – this end yoke is machined from cast iron for strength and is precision machined for reliability
    • Validated fit – this differential end yoke has been tested to confirm accurate fit
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    Yukon Gear – Minor Install Kit For ’87 & Down 10.5" GM 14 Bolt Truck Differential (Part No.12045)

    Minor Install Kit For '87 & Down 10.5" GM 14 Bolt Truck Differential

    from

    $108.99
    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 1988 and down GM 10.5″ 14 bolt truck
    • Included are a pinion seal, crush sleeve , complete shim kit, marking compound and brush.
    See More

    Motive Gear – Ring Gear Bolt (Part No.331421)

    Ring Gear Bolt

    from

    $9.99
    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.
    See More

    Powertrax – No-Slip Traction System (Part No.9207053000)

    No-Slip Traction System

    from

    $591.99
    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!The Powertrax® Lock-Right Locker provides outstanding traction for off-road machines and race vehicles. Powertrax No-Slip Traction Systems deliver excellent performance to street-driven cars and trucks.
  • Powertrax® lockers range from the original, Lock-Right for serious straight-line performance, to the No-Slip traction system for street-able vehicles.
  • Powertrax® offers three levels of GRIP locking differentials, ranging from the clutch-type GRIP LS with a forged steel case, the gear-driven GRIP PRO and finally the GRIP LOK for extreme traction.
  • Powertrax® = Extreme Traction Systems!
  • See More

    Most Popular Differential Covers for 1973 GMC C25/C2500 Suburbans

    Enhance your 1973 GMC C25/C2500 Suburban with one of the 2 Differential Covers we have in stock, starting at just $59.99.

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

    Steel Cover For GM 10.5" 14 Bolt Truck

    from

    $92.99
    Product Features:
    • Fits GM 10.5″ 14 bolt truck
    • Steel
    See More

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

    Chrome Cover For 10.5" GM 14 Bolt Truck

    from

    $59.99
    Chrome cover for GM 14T.

    Product Features:
    • Fits GM 10.5″ 14 bolt truck
    • Chrome
    See More

    Best-Selling 1973 GMC C25/C2500 Suburban Rear Differential Cover Gaskets

    Upgrade your C25/C2500 Suburban with one of our 4 best-selling Rear Differential Cover Gaskets, earning an average 4.75 stars rating across 14 reviews.

    Mr. Gasket – Differential Gasket (Part No.84B)

    Differential Gasket

    from

    $20.99
    Mr. Gasket Axle Housing/Differential Cover or Rear End Gaskets are manufactured from a .047 inch thick cellulose/nitrile composite gasket material for excellent sealing and durability. They are precision die-cut for an excellent fit. Fits 1964-1970 Chevrolet 8.2 inch 10 bolt & 1970-1981 GM 8.5 inch ring gear

    Product Features:
    • .047″ thick cellulose/nitrile composite gasket material
    • Precision die cut
    • Reusable
    See More

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

    Axle Housing Cover Gasket: Irregular Shaped 14 Bolt Hole Gasket

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

    GM 10.5' 14 Bolt Truck Cover Gasket

    from

    $13.99
    14T cover gasket.

    Product Features:
    • Cover gasket
    • Fits GM 10.5″ 14 bolt truck
    See More

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

    Differential Cover Gasket

    from

    $3.99
    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.
    See More

    Top-Quality Differential Bearings for 1973 GMC C25/C2500 Suburbans

    Choose a high-quality OEM or aftermarket Differential Bearing for GMC C25/C2500 Suburbans and enjoy top-notch performance from $8.49.

    National – Bearing Race (Part No.382A)

    Bearing Race

    from

    $10.99
    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 – Tapered Cone Wheel Bearing Assembly (Part No.S-387-AS)

    Tapered Cone Wheel Bearing Assembly

    from

    $18.49
    Value-priced bearing meets all cataloged application requirements.

    Product Features:
    • Brand may vary by location
    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 – Bearing Race (Part No.LM501310)

    Bearing Race

    from

    $8.49
    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

    Top Picks for 1973 GMC C25/C2500 Suburban Differential Oil

    Invest in one of our 5 durable Differential Oil for your 1973 GMC, knowing you’re getting trusted brands and expert craftsmanship.

    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
    See More

    Valvoline – DEX/MERC ATF Conventional Automatic Transmission Fluid, 1 Quart (Part No.798153)

    DEX/MERC ATF Conventional Automatic Transmission Fluid, 1 Quart

    from

    $11.99
    Valvoline DEX/MERC ATF is a high-quality transmission fluid formulated to meet the challenging demands of many automatic transmissions. Its responsive low-temperature fluidity is beneficial in both electronic and hydraulic controlled transmissions and transaxles. Recommended for use in the following applications: MERCON*, DEXRON*-III, Ford M2C138-CJ and M2C166-H, Allison C-4 and TES-389, and Caterpillar TO-2.

    Product Features:
    • Formulated with premium 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
    See More

    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
    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
    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

    Differential Pinion Seals for 1973 GMC C25/C2500 Suburbans

    Make a smart move for your 1973 GMC C25/C2500 Suburban with products all priced from $18.49 to $19.99.

    Yukon Gear – Pinion Seal For GM 14T (Part No.30023)

    Pinion Seal For GM 14T

    from

    $19.99
    Pinion seal for GM 14T.Yukon Mighty seal.

    Product Features:
    • Pinion seal
    • Fits 1998 and down GM 10.5″ 14 bolt truck
    See More

    Motive Gear – Differential Pinion Seal (Part No.5778V)

    Differential Pinion Seal

    from

    $18.49
    All Motive Gear products are engineered for their specific application and manufactured in state of the art facilities. All of our products undergo rigid quality control processes to insure proper fit, performance and longevity. Motive Gear products can be found in the winners circle at NHRA, IHRA, NMRA, NMCA, SODA, SCORE, BITD, Ultra-4 and NASCAR events because we offer unmatched selection and quality demanded by racers and their crew chiefs – the same quality and selection demanded by DIY customers and top mechanics. With four warehouses strategically located across North America, most Motive Gear orders arrive within 2-4 days. Win with Motive Gear!
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    Top-Rated Differential Brands For Your 1973 GMC C25/C2500 Suburban

    When it comes to finding the perfect Differential for your 1973 GMC C25/C2500 Suburban, Advance Auto Parts has you covered with a wide selection of high-quality OEM and aftermarket options from 12 trusted brands. We carry the most popular Differential brands including Valvoline, Richmond Gear, and National, and more, all known for their exceptional customer ratings (average brand rating of 4.8 stars) and competitive prices, as low as $10.99. Purchasing a Differential from us here at Advance Auto Parts is a smart move for both you and your 1973 GMC C25/C2500 Suburban, providing peace of mind with parts that meet or exceed OEM standards.

    Popular Valvoline 1973 GMC C25/C2500 Suburban Differentials

    If you’re looking for a top-quality Differential for your 1973 GMC C25/C2500 Suburban, Advance Auto Parts has exactly what you need with our selection of Valvoline Differentials. We have 1 Valvoline Differentials in stock for this fitment, all known for their durability and precision fit. With prices starting at just $14.49, you’ll find the perfect Differential for your needs and budget. Valvoline Differentials for the 1973 GMC C25/C2500 Suburban come highly rated, with over 2 customer reviews and an impressive average rating of 4.8 stars. Choosing a Valvoline Differential from Advance Auto Parts is a smart move to ensure quality and value for your vehicle.
    DEXRON - VI ATF Full Synthetic Automatic Transmission Fluid, 1 Quart
    from $14.49
    (2)
    DEXRON – VI ATF Full Synthetic Automatic Transmission Fluid, 1 Quart
    “I’ve used this in my 2005 2500HD since I bought the truck with 20k on it now at 280k changed every other year maybe 40k I’d put on in two years, I pu”

    Top-Quality Richmond Gear 1973 GMC C25/C2500 Suburban Differentials

    For those in search of a high-quality Differential for their 1973 GMC C25/C2500 Suburban, Advance Auto Parts offers a great selection of Richmond Gear Differentials. With 1 Richmond Gear 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 $350.99, giving you a range of options to suit your budget. Backed by over 2 customer ratings and an average rating of 4.5 stars, Richmond Gear Differentials provide both reliability and excellent performance. Choosing a Richmond Gear Differential from Advance Auto Parts is a smart investment in your vehicle’s performance and longevity.
    Differential Ring And Pinion
    from $350.99
    (2)
    Differential Ring And Pinion
    “I have a Chevy Impala 07 that runs on 3 cylinders when not needing the power of 6, and the new plugs have significantly provided an inexpensive tuneup”

    FAQs for 1973 GMC C25/C2500 Suburban Differentials

    What are the best-selling Differentials for 1973 GMC C25/C2500 Suburbans?

    Out of 143 Differentials that fit 1973 GMC C25/C2500 Suburbans, the following parts are the top sellers:

    What’s the price range for 1973 GMC C25/C2500 Suburban Differentials?

    The prices of Differentials for the 1973 GMC C25/C2500 Suburban range from $0.91 up to $1,141.99 for the most premium parts.

    What is the average price of a Differential for a 1973 GMC C25/C2500 Suburban?

    The average price for Differentials for the 1973 GMC C25/C2500 Suburban is $227.36. 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 C25/C2500 Suburban model years?

    Yes, we carry Differentials for 6 model years of GMC C25/C2500 Suburbans between 1967 and 1974. The following model years are the most popular for Differential purchases: 1974, 1972, 1971, 1970, 1969, 1968, and 1967.

    What are the cheapest Differentials for my 1973 GMC C25/C2500 Suburban?

    The cheapest 1973 GMC C25/C2500 Suburban Differentials we carry are:

    Does Advance Auto Parts sell Differentials for any other 1973 GMC models?

    What types of Differentials do you sell for my 1973 GMC C25/C2500 Suburban?

    As of 11/2/25, these are some of the most in-demand types of Differentials for a 1973 GMC C25/C2500 Suburban:

    Can I get help with 1973 GMC C25/C2500 Suburban 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 C25/C2500 Suburban Differentials?

    Advance Auto Parts keeps returns simple. For new GMC C25/C2500 Suburban Differentials and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.