1966 GMC K1000 Pickup Differentials

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Keep Your 1966 GMC K1000 Pickup in Top Shape with Quality Differentials

Whether you’re repairing or upgrading your Differential, using high-quality parts is key to keeping your 1966 GMC K1000 Pickup looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Front Differential Pinion Bearings, Differential Pinion Seals, and Rear Housing Cover Gaskets. 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 Richmond Gear, National, and Felpro. For example, Richmond Gear Differentials start at just $350.99 with an average 4.5 star rating. National and Felpro offer similar pricing and quality, backed by strong customer feedback. With over 141 reviews and a solid 4 star average, you can shop with confidence knowing other GMC K1000 Pickup owners approve.

Competitive Prices and Extensive Inventory

The average price for a 1966 GMC K1000 Pickup Differential at Advance Auto Parts is around $181.18, with a range that starts at $5.99 and goes up to $1,566.99. With 66 options in stock from 9 trusted brands, finding the right fit is easy. Popular picks like Differential Pinion Seal, Multi-Purpose Bearing, and Differential Carrier Shim Kit start at just $8.99 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 1966 GMC K1000 Pickup in peak condition, inside and out.

Essential 1966 GMC K1000 Pickup Differentials

Motive Gear – Differential Ring and Pinion (Part No.D44-538)

Differential Ring and Pinion

from

$227.99


Product Features:
  • DANA-44 R/P 5.38 STD MG
See More

Felpro – Axle Housing Cover Gasket Irregular Shaped 10 Bolt Hole Gasket (Part No.RDS 6629)

Axle Housing Cover Gasket Irregular Shaped 10 Bolt Hole Gasket

from

$7.99
Fel-Pro® gaskets are specifically designed for the repair environment to deliver a reliable seal on even the most troublesome applications. Designed for imperfect sealing surfaces and manufactured with proprietary materials, you can count on Fel-Pro for innovative sealing solutions for the real-world repair environment.

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

Powertrax – No-Slip Traction System (Part No.9207883005)

No-Slip Traction System

from

$551.99
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

    Felpro – Differential Carrier Gasket Round Shaped 10 Bolt Hole Gasket (Part No.RDS 4305)

    Differential Carrier Gasket Round Shaped 10 Bolt Hole Gasket

    from

    $8.99
    Fel-Pro® gaskets are specifically designed for the repair environment to deliver a reliable seal on even the most troublesome applications. Designed for imperfect sealing surfaces and manufactured with proprietary materials, you can count on Fel-Pro for innovative sealing solutions for the real-world repair environment.

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

    Richmond Gear – MiniSpool (Part No.78-1230-1)

    MiniSpool

    from

    $151.99
    MiniSpool

    National – Tapered Roller Bearing Cone (Part No.25577)

    Tapered Roller Bearing Cone

    from

    $32.99
    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

    Motive Gear – Differential Carrier Shim Kit (Part No.1115)

    Differential Carrier Shim Kit

    from

    $18.99


    Product Features:
    • CARRIER SHIM – DANA 44
    See More

    Motive Gear – Differential Mini Spool (Part No.MS12C)

    Differential Mini Spool

    from

    $108.99


    Product Features:
    • MINI SPOOL GM12 BOLT CAR & TRUCK STRANGE # 088430
    See More

    Motive Gear – Differential Pinion Shim Kit (Part No.1104)

    Differential Pinion Shim Kit

    from

    $12.99


    Product Features:
    • KIT SHIM
    See More

    Motive Gear – Differential Ring and Pinion (Part No.GM12-456A)

    Differential Ring and Pinion

    from

    $187.99


    Product Features:
    • GM 12BL 8.875 R/P 4.56A MG
    See More

    Dorman – Differential Pinion Yoke Assembly (Part No.697-537)

    Differential Pinion Yoke Assembly

    from

    $289.99
    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
    See More

    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!
    See More

    Richmond Gear – Differential Cross Shaft (Part No.CSPD44)

    Differential Cross Shaft

    from

    $26.99
    Richmond Gear is the leading manufacturer of professional quality, high-performance drivetrain products. Our complete line of products ranges from high performance ring-and-pinion sets for serious street and racing applications to torque-hungry manual transmissions and components. Richmond Gear products have been winners both at the Daytona 500 and U.S. Nationals for decades. WINNERS RUN RICHMOND!

    Product Features:
    • For over 80-years, the Richmond Double-Diamond logo has represented some of the highest quality gears in the racing industry. Winners Run Richmond!
    • The superior quality of Richmond gearsets is a result of outstanding design, world class manufacturing and an extensive testing process that is performed on all products.
    • Richmond performance gearsets have been winners for decades at: NHRA, NMRA, NMCA, Daytona 500, WISSOTA and U.S. Nationals.
    • Richmond Gear is a leading manufacturer of high performance ring and pinion gearsets and drivetrain components, backed by a two year warranty.
    • Engineered to perform faster and be more reliable, Richmond performance drivetrain products are the result of a continuous research and development program combined with state-of-the-art manufacturing capabilities.
    See More

    Driveworks – Tapered Roller Bearing (Part No.S-HM-89449)

    Tapered Roller Bearing

    from

    $17.29
    Product Features:
    • Brand may vary by location
    See More

    National – Multi-Purpose Seal (Part No.5778V)

    Multi-Purpose Seal

    from

    $41.49
    National has built a reputation as one of the most respected names in the industry. We have offered premium sealing solutions for more than 75 years. Our design team keeps pace with the industry and provides advanced solutions for today’s vehicles.

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

    National – Differential Pinion Seal (Part No.5778)

    Differential Pinion Seal

    from

    $23.49
    National has built a reputation as one of the most respected names in the industry. We have offered premium sealing solutions for more than 75 years. Our design team keeps pace with the industry and provides advanced solutions for today’s vehicles.

    Product Features:
    • Design type: spring loaded; multi-lip
    • Temperature range: -20 Deg. F to 300 Deg. F / -29 Deg. C to 49 Deg. C
    • Resistance to EP lubricants
    • Low swell in hydrocarbon fluids
    • Delivers quality and reliable performance for every type of repair
    See More

    National – Shaft Repair Sleeve (Part No.99170)

    Shaft Repair Sleeve

    from

    $46.99
    National has built a reputation as one of the most respected names in the industry. We have offered premium sealing solutions for more than 75 years. Our design team keeps pace with the industry and provides advanced solutions for today’s vehicles.

    Product Features:
    • Designed to repair damaged, grooved or worn shafts
    • Durable stainless steel construction for corrosion-free sealing surface that surpasses most original shaft specifications
    • Ideal for a shaft where indications of seal wear, such as tracks or grooves have developed
    • Ultra-thin construction (0.01/0.25mm wall thickness) allows original seal size to be used with minimal additional lip loading
    • Easy to install with removable flange and installation tool
    See More

    Motive Gear – Differential Pinion Shim Kit (Part No.1114)

    Differential Pinion Shim Kit

    from

    $6.99


    Product Features:
    • D30 PRE-LOAD SPACER (SHIM PACK)
    See More

    Motive Gear – Differential Crush Sleeve (Part No.3954482)

    Differential Crush Sleeve

    from

    $5.99


    Product Features:
    • CRUSH SLV 8 7/8 12BLT TRK
    See More

    Motive Gear – Differential Master Bearing Kit – Timken (Part No.R12RMKT)

    Differential Master Bearing Kit - Timken

    from

    $119.99
    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:
    • KIT BRG & SEAL GM 12 BOLT TRK
    See More

    Richmond Gear – RngPnnInstlKt (Part No.83-1018-1)

    RngPnnInstlKt

    from

    $182.99
    RngPnnInstlKt

    Spicer – Axle Shaft, Dana 44 (Part No.620200)

    Axle Shaft, Dana 44

    from

    $159.99
    Genuine Spicer light vehicle axle products are manufactured to the same high standards as original equipment (OE) parts because they are OE parts. That means when an automotive axle part is replaced with a genuine Spicer part, you are getting the same performance and reliability you have come to expect. And because Dana is constantly revolutionizing the technology behind its Dana axles and Spicer products, the replacement car axle or component you purchase today may even exceed the standards set for the original equipment part that you are replacing.

    Product Features:
    • Genuine OE quality. Tested and proven.
    • Ultrasonically tested for internal cracks that magnetic testing can miss.
    • Built from high grade steel that stands up to any grade on the market.
    • Engineered for consistent quality and durability.
    See More

    Motive Gear – Axle Shaft (Part No.MG6569)

    Axle Shaft

    from

    $161.99
    The Motive Gear replacement axle shaft offers an OE-quality axle shaft at a fraction of the OE cost. Manufactured from 1541H material on high-tolerance CNC equipment, this axle shaft is designed to provide a perfect fit every time.

    Product Features:
    • AXLE SHAFT 65-69 12 BOLT 8 7/8 30 1/2″ 2 & 4WD 6 LUG TO 5 LUG CONV
    See More

    Yukon Gear – Bearing Race Driver Set, 21 Piece (Part No.56030)

    Bearing Race Driver Set, 21 Piece

    from

    $1566.99
    21 Piece bearing race driver set. (Box wt: 140lbs) No return.

    Product Features:
    • Bearing race driver set
    • 21 pieces
    • All steel construction
    See More

    Motive Gear – Differential Gear Install Kit (Part No.D44IK)

    Differential Gear Install Kit

    from

    $61.99


    Product Features:
    • MINI INSTALL KIT DANA 44
    See More

    Richmond Gear – RngPnnInstlKt (Part No.83-1018-B)

    RngPnnInstlKt

    from

    $39.49
    RngPnnInstlKt

    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
    See More

    Most Popular Front Differential Pinion Bearings for 1966 GMC K1000 Pickups

    Enhance your 1966 GMC K1000 Pickup with one of the 4 Front Differential Pinion Bearings we have in stock, starting at just $13.49.

    National – Tapered Roller Bearing Cone (Part No.HM89449)

    Tapered Roller Bearing Cone

    from

    $23.99
    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.02820)

    Bearing Race

    from

    $13.49
    National Oil Seals & Bearings offer a full line of premium oil seals and bearings.

    Product Features:
    • Premium bearing design matches OEM specifications
    • Precision manufactured using premium-grade steel for outstanding durability and performance
    • Crowned raceways and rollers to ensure even load distribution for maximum life
    • Industry leading coverage
    • Professional technicians know they can depend on National
    See More

    National – Bearings (Part No.31520)

    Bearings

    from

    $13.49
    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

    Driveworks – Tapered Roller Bearing (Part No.S-HM-89449)

    Tapered Roller Bearing

    from

    $17.29
    Product Features:
    • Brand may vary by location
    See More

    Best-Selling 1966 GMC K1000 Pickup Differential Pinion Seals

    Upgrade your K1000 Pickup with one of our 2 best-selling Differential Pinion Seals, earning an average 4.5 stars rating across 4 reviews.

    National – Differential Pinion Seal (Part No.5778)

    Differential Pinion Seal

    from

    $23.49
    National has built a reputation as one of the most respected names in the industry. We have offered premium sealing solutions for more than 75 years. Our design team keeps pace with the industry and provides advanced solutions for today’s vehicles.

    Product Features:
    • Design type: spring loaded; multi-lip
    • Temperature range: -20 Deg. F to 300 Deg. F / -29 Deg. C to 49 Deg. C
    • Resistance to EP lubricants
    • Low swell in hydrocarbon fluids
    • Delivers quality and reliable performance for every type of repair
    See More

    National – Multi-Purpose Seal (Part No.5778V)

    Multi-Purpose Seal

    from

    $41.49
    National has built a reputation as one of the most respected names in the industry. We have offered premium sealing solutions for more than 75 years. Our design team keeps pace with the industry and provides advanced solutions for today’s vehicles.

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

    Top-Quality Rear Housing Cover Gaskets for 1966 GMC K1000 Pickups

    Choose a high-quality OEM or aftermarket Rear Housing Cover Gasket for GMC K1000 Pickups and enjoy top-notch performance from $7.99.

    Felpro – Axle Housing Cover Gasket Irregular Shaped 10 Bolt Hole Gasket (Part No.RDS 6629)

    Axle Housing Cover Gasket Irregular Shaped 10 Bolt Hole Gasket

    from

    $7.99
    Fel-Pro® gaskets are specifically designed for the repair environment to deliver a reliable seal on even the most troublesome applications. Designed for imperfect sealing surfaces and manufactured with proprietary materials, you can count on Fel-Pro for innovative sealing solutions for the real-world repair environment.

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

    Top Picks for 1966 GMC K1000 Pickup Differential Axle Shafts

    Invest in one of our 2 durable Differential Axle Shafts for your 1966 GMC, knowing you’re getting trusted brands and expert craftsmanship.

    Motive Gear – Axle Shaft (Part No.MG6569)

    Axle Shaft

    from

    $161.99
    The Motive Gear replacement axle shaft offers an OE-quality axle shaft at a fraction of the OE cost. Manufactured from 1541H material on high-tolerance CNC equipment, this axle shaft is designed to provide a perfect fit every time.

    Product Features:
    • AXLE SHAFT 65-69 12 BOLT 8 7/8 30 1/2″ 2 & 4WD 6 LUG TO 5 LUG CONV
    See More

    Spicer – Axle Shaft, Dana 44 (Part No.620200)

    Axle Shaft, Dana 44

    from

    $159.99
    Genuine Spicer light vehicle axle products are manufactured to the same high standards as original equipment (OE) parts because they are OE parts. That means when an automotive axle part is replaced with a genuine Spicer part, you are getting the same performance and reliability you have come to expect. And because Dana is constantly revolutionizing the technology behind its Dana axles and Spicer products, the replacement car axle or component you purchase today may even exceed the standards set for the original equipment part that you are replacing.

    Product Features:
    • Genuine OE quality. Tested and proven.
    • Ultrasonically tested for internal cracks that magnetic testing can miss.
    • Built from high grade steel that stands up to any grade on the market.
    • Engineered for consistent quality and durability.
    See More

    Top-Rated Differential Bearings for 1966 GMC K1000 Pickups

    Make a smart move for your 1966 GMC K1000 Pickup with products all priced from $27.99 to $32.99.

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

    Multi-Purpose Bearing

    from

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

    National – Tapered Roller Bearing Cone (Part No.25577)

    Tapered Roller Bearing Cone

    from

    $32.99
    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

    Top-Rated Differential Brands For Your 1966 GMC K1000 Pickup

    When it comes to finding the perfect Differential for your 1966 GMC K1000 Pickup, Advance Auto Parts has you covered with a wide selection of high-quality OEM and aftermarket options from 9 trusted brands. We carry the most popular Differential brands including Felpro, Richmond Gear, and National, and more, all known for their exceptional customer ratings (average brand rating of 4.6 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 1966 GMC K1000 Pickup, providing peace of mind with parts that meet or exceed OEM standards.

    Popular Felpro 1966 GMC K1000 Pickup Differentials

    If you’re looking for a top-quality Differential for your 1966 GMC K1000 Pickup, Advance Auto Parts has exactly what you need with our selection of Felpro Differentials. We have 1 Felpro Differentials in stock for this fitment, all known for their durability and precision fit. With prices starting at just $7.99, you’ll find the perfect Differential for your needs and budget. Felpro Differentials for the 1966 GMC K1000 Pickup come highly rated, with over 10 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.

    Top-Quality Richmond Gear 1966 GMC K1000 Pickup Differentials

    For those in search of a high-quality Differential for their 1966 GMC K1000 Pickup, Advance Auto Parts offers a great selection of Richmond Gear Differentials. With 3 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, with an average price of $354.32, giving you a range of options to suit your budget. Backed by over 10 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”
    Differential Ring And Pinion
    from $350.99
    (7)
    Differential Ring And Pinion
    “Great spark plugs.”
    Differential Ring And Pinion
    from $360.99
    (1)
    Differential Ring And Pinion
    “Best ever!!!’nn”

    FAQs for 1966 GMC K1000 Pickup Differentials

    What are the best-selling Differentials for 1966 GMC K1000 Pickups?

    Out of 66 Differentials that fit 1966 GMC K1000 Pickups, the following parts are the top sellers:

    What’s the price range for 1966 GMC K1000 Pickup Differentials?

    The prices of Differentials for the 1966 GMC K1000 Pickup range from $5.99 up to $1,566.99 for the most premium parts.

    What is the average price of a Differential for a 1966 GMC K1000 Pickup?

    The average price for Differentials for the 1966 GMC K1000 Pickup is $181.18. 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.

    What are the cheapest Differentials for my 1966 GMC K1000 Pickup?

    The cheapest 1966 GMC K1000 Pickup Differentials we carry are:

    Does Advance Auto Parts sell Differentials for any other 1966 GMC models?

    Yes. We stock Differentials for 20 other popular 1966 GMC models. Some of the most popular are 1966 K15/K1500 Pickup Differentials, 1966 Suburban Differentials, 1966 G1000 Series Differentials, 1966 PB1000 Series Differentials, and 1966 I1500 Differentials.

    What types of Differentials do you sell for my 1966 GMC K1000 Pickup?

    As of 3/1/26, these are some of the most in-demand types of Differentials for a 1966 GMC K1000 Pickup:

    Can I get help with 1966 GMC K1000 Pickup 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 K1000 Pickup Differentials?

    Advance Auto Parts keeps returns simple. For new GMC K1000 Pickup Differentials and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.