1968 GMC K15/K1500 Pickup Differentials

Keep Your 1968 GMC K15/K1500 Pickup in Top Shape with Quality Differentials

Whether you’re repairing or upgrading your Differential, using high-quality parts is key to keeping your 1968 GMC K15/K1500 Pickup looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Differential Covers, Differential Bearings, and Rear Differential 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 National, FELPRO, and DriveWorks. For example, National Differentials start at just $7.99 with an average 4.3 star rating. FELPRO and DriveWorks offer similar pricing and quality, backed by strong customer feedback. With over 1,078 reviews and a solid 4 star average, you can shop with confidence knowing other GMC K15/K1500 Pickup owners approve.

Competitive Prices and Extensive Inventory

The average price for a 1968 GMC K15/K1500 Pickup Differential at Advance Auto Parts is around $273.97, with a range that starts at $0.91 and goes up to $1,969.99. With 406 options in stock from 14 trusted brands, finding the right fit is easy. Popular picks like DEXRON – VI ATF Full Synthetic Automatic Transmission Fluid, 1 Quart, DEX/MERC ATF Conventional Automatic Transmission Fluid, 1 Quart, and Axle Housing Cover Gasket Irregular Shaped 10 Bolt Hole Gasket start at just $7.99 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 1968 GMC K15/K1500 Pickup in peak condition, inside and out.

Essential 1968 GMC K15/K1500 Pickup Differentials

Yukon Gear – Pinion Depth Shims For GM 7.5", 7.75", 8.2" & 12 Bolt Truck (Part No.55008)

Pinion Depth Shims For GM 7.5", 7.75", 8.2" & 12 Bolt Truck

from

$21.99
Product Features:
  • 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
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Yukon Gear – 8.75" Chrysler & 55P Chevy Power Lok Clutches, Model 20 Also, Posi (Part No.16148)

8.75" Chrysler & 55P Chevy Power Lok Clutches, Model 20 Also, Posi

from

$275.99
8.75″ Chrysler & 55P Chevy Power Lok clutches, Model 20 also, POSI.

Product Features:
  • Clutch kit
  • Fits Chrysler 8.75″, 1955-1964 GM passenger car and AMC Model 20 Powr Lok positraction
See More

Yukon Gear – Dana 44 Pinion Gear Thrust Washer (Part No.33281)

Dana 44 Pinion Gear Thrust Washer

from

$4.99
Dana 44, GM55P & 8.2″ GM pinion gear Thrust washer.

Product Features:
  • Pinion gear thrust washer for Dana Spicer 44, GM 8.2″ and 1955-1964 GM passenger car
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USA Standard Gear – Replacement Ring & Pinion Gear Set For Dana 44 In A 5.89 Ratio (Part No.36054)

Replacement Ring & Pinion Gear Set For Dana 44 In A 5.89 Ratio

from

$287.99
USA Standard ring & pinion sets are the right choice to add confidence to your install. USA Standard Gear offers a full line of ring & pinion sets for a variety of common & hard to find applications. USA standard gear offers a standard one year warranty against defects on their ring & pinion sets.

Product Features:
  • Fits standard rotation Dana Spicer 44
  • 8.50″ ring gear diameter
  • 26 spline pinion
  • 10 ring gear bolts
  • 5.89 ratio
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Yukon Gear – Standard Open Side Gear And Thrust Washer For GM 12 Bolt Car And Truck (Part No.33380)

Standard Open Side Gear And Thrust Washer For GM 12 Bolt Car And Truck

from

$7.99
Standard Open side gear thrust washer for 12P and 12T GM.

Product Features:
  • Side gear thust washer for GM 12 bolt passenger car and truck
  • Fits standard open differentials only
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Yukon Gear – Replacement Cover Gasket For Dana 50, Dana 60 & Dana 70 (Part No.23007)

Replacement Cover Gasket For Dana 50, Dana 60 & Dana 70

from

$13.99
Product Features:
  • Cover gasket
  • Fits Dana Spicer 60, 70, 70U and 70HD
See More

Yukon Gear – Seal Housing For Dana 60, Zip Locker, With O-Rings (Part No.34039)

Seal Housing For Dana 60, Zip Locker, With O-Rings

from

$79.99
Seal housing for Dana 60, Zip locker, with o-rings.

Product Features:
  • Seal housing for Dana Spicer 60
  • Includes o-rings
See More

Yukon Gear – Redi-Sleeve Yoke Saver For 8.75" C, 9.25" C, Dana 60, Dana 61, Dana 70, Dana 70U, Dana 70HD (Part No.30228)

Redi-Sleeve Yoke Saver For 8.75" C, 9.25" C, Dana 60, Dana 61, Dana 70, Dana 70U, Dana 70HD

from

$37.99
Replacement redi-sleeve yoke saver for 8.75″ c, 9.25″ c, Dana 60, Dana 61, Dana 70, Dana 70U, Dana 70HD .Yukon Mighty seal.

Product Features:
  • Redi-Sleeve yoke saver
  • Fits Chrysler 8.75″ and 9.25″ rear, Dana Spicer 60, 70, 70U and 70HD
See More

Yukon Gear – Bearing Race Driver (Part No.56014)

Bearing Race Driver

from

$215.99
Bearing race driver. No return.

Product Features:
  • Bearing race driver
  • Fits HM88510 race
  • All steel construction
See More

Felpro – Axle Housing Cover Gasket Irregular Shaped 10 Bolt Hole Gasket (Part No.RDS 6095-1)

Axle Housing Cover Gasket Irregular Shaped 10 Bolt Hole Gasket

from

$9.49
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

Yukon Gear – Forged Replacement Yoke For Dana 60, Stronger Than Billet, With A 1350 U/Joint Size (Part No.41029)

Forged Replacement Yoke For Dana 60, Stronger Than Billet, With A 1350 U/Joint Size

from

$266.99
Yukon forged replacement yoke for Dana 60, stronger than billet, with a 1350 U/joint size. 3.625″ snap ring span, 1.188″ cap diameter. Outside snap ring. This yoke uses u-bolts. All Yukon yokes come with a one year warranty against manufacturing defects.

Product Features:
  • Fits Dana Spicer 60, 70, 70U and 70HD
  • 29 spline
  • 1350 u-joint size
  • 3.625″ snap ring span
  • 1.188″ cap diameter
  • Outside snap ring design
  • U-bolt style
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Yukon Gear – 8.6" GM 12P 12T & F8.8 Carrier Installation Kit (Part No.57010)

8.6" GM 12P 12T & F8.8 Carrier Installation Kit

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
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Pro-King – Differential Crush Sleeve (Part No.742G034)

Differential Crush Sleeve

from

$2.99
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

Yukon Gear – Positraction Internals For Dana 44 Dura Grip Posi, 30 Spline (Part No.16168)

Positraction Internals For Dana 44 Dura Grip Posi, 30 Spline

from

$399.99
Yukon positraction internals for Dana 44 Dura Grip posi, 30 spline. Does not include clutches. Does NOT fit Trac Loc or Powr Lok. Fits Dura Grip ONLY.

Product Features:
  • Spider gear kit
  • Fits Dana Spicer 44 with Dura Grip positraction
  • Includes two side gears, four pinion gears, cross pin shaft, roll pin and spider gear thrust washers.
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Yukon Gear – Dana 44 Inner Axle Replacement (Part No.21050)

Dana 44 Inner Axle Replacement

from

$199.99
Yukon 1541H replacement inner axle for Dana 44 with a length of 18.5 inches and with 30 splines. Yukon 1541H alloy axles offer a strength increase over stock while retaining a low cost. Yukon 1541H front axles come with a one year warranty against manufacturing defects.

Product Features:
  • Fits 1969-1980 GM half ton front
  • Left hand inner
  • 30 spline
  • 18.5″ from end of splines to center of u-joint bore
  • 1541H alloy
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Yukon Gear – Zip Locker Rear Switch Cover (Part No.34010)

Zip Locker Rear Switch Cover

from

$7.99
ZIP locker rear switch cover.

Product Features:
  • Cover for switch
  • Rear
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FAG US – Shaft Seal (Part No.SS2983)

Shaft Seal

from

$14.29
Our wheel seals are engineered using only the highest-quality materials to meet vehicle manufacturer specificatons. We work with suppliers to design seals that meet FAG’s quality standards. Seals are designed to protect wheel end components from contamination – such as dirt, dust, and moisture – and prevent the loss of grease over the life of the bearing. The specifications for wheel seals are very demanding, and the type required depends on the specific application, position and vehicle class.

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
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

    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

    Dorman – Premium Ring and Pinion Master Bearing and Installation Kit (Part No.797-105)

    Premium Ring and Pinion Master Bearing and Installation Kit

    from

    $249.99
    If you’re repairing or rebuilding a front or rear differential and want the best performance and longevity from the bearings being replaced, choose this premium differential kit. It includes high-precision bearings manufactured to tighter tolerances and engineered to last longer than common lower-grade bearings that have more backlash when subjected to the torque generated within the differential. This convenient kit also saves the time needed to source individual components. Check the product attributes and fitment details to select the correct premium differential kit for your application.

    Product Features:
    • Ideal solution – this premium differential bearing kit features high-precision bearings to help ensure longer bearing life, prevent backlash, and restore proper differential operation
    • Direct replacement – the components in this all-in-one kit are engineered to precisely match the fit and function of the original equipment bearings for a seamless installation
    • Increased reliability – the premium bearings in this kit are manufactured to exacting tolerances and specifications from high quality materials to help ensure optimal performance
    • Application-specific – check the product attributes and fitment details to choose the correct kit for your application
    See More

    Yukon Gear – Dana 60 & Dana 70 Power Lok Case Bolt (Part No.33236)

    Dana 60 & Dana 70 Power Lok Case Bolt

    from

    $7.99
    Dana 60 & Dana 70 Power Lok case bolt.

    Product Features:
    • Power Lok case bolt for Dana Spicer 60 and 70
    • 7/16 x 14 thread
    • 3.5″ long
    • 9/16″ hex head
    See More

    Yukon Gear – Dana 30 / 44 Roll Pin Replacement (Part No.33312)

    Dana 30 / 44 Roll Pin Replacement

    from

    $12.99
    Dana 30 & Dana 44 roll PIN, 0.235″ DIA, for cross pin shaft.

    Product Features:
    • Roll pin for Dana Spicer 30 and Dana Spicer 44
    • 0.235″ diameter
    See More

    Yukon Gear – 3/8" Ring Gear Bolt Washer For GM 12 Bolt Car & Truck, 8.2 Bop & More (Part No.33347)

    3/8" Ring Gear Bolt Washer For GM 12 Bolt Car & Truck, 8.2 Bop & More

    from

    $4.99
    3/8″ ring gear bolt washer for GM 12 bolt car & truck, 8.2 BOP & more.

    Product Features:
    • Ring gear bolt washer for GM 12 bolt car and truck, 1955-1964 passenger car, 1963-1979 Corvette and 8.2″ Buick, Oldsmobile and Pontiac
    See More

    Yukon Gear – Chrome Replacement Cover For Dana 60 And 61 Standard Rotation (Part No.32005)

    Chrome Replacement Cover For Dana 60 And 61 Standard Rotation

    from

    $89.99
    Chrome replacement cover for Dana 60 and 61(not reverse rotation!).

    Product Features:
    • Fits standard rotation Dana Spicer 60
    • Chrome
    See More

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

    MiniSpool

    from

    $151.99
    MiniSpool

    Yukon Gear – Replacement Inner Slinger For Dana 60 (Part No.33014)

    Replacement Inner Slinger For Dana 60

    from

    $9.99
    Product Features:
    • Inner oil slinger for Dana Spicer 60
    See More

    National – Bearing Race (Part No.M88010)

    Bearing Race

    from

    $7.99
    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

    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

    Popular 1968 GMC K15/K1500 Pickup Differentials Categories

    Most Popular Differential Covers for 1968 GMC K15/K1500 Pickups

    Enhance your 1968 GMC K15/K1500 Pickup with one of the 10 Differential Covers we have in stock, starting at just $64.99.

    Yukon Gear – Replacement Chrome Cover For Dana 44 (Part No.32004)

    Replacement Chrome Cover For Dana 44

    from

    $67.99
    0.080″ thick Chrome replacement cover for Dana 44.

    Product Features:
    • Fits standard rotation Dana Spicer 44
    • Chrome
    See More

    Yukon Gear – Chrome Cover For GM 12 Bolt Truck (Part No.32012)

    Chrome Cover For GM 12 Bolt Truck

    from

    $64.99
    Chrome cover for GM 12T.

    Product Features:
    • Fits GM 12 bolt truck
    • Chrome
    See More

    Yukon Gear – Steel Cover For Dana 44 Standard Rotation (Part No.32319)

    Steel Cover For Dana 44 Standard Rotation

    from

    $129.99
    Product Features:
    • Fits standard rotation Dana Spicer 44
    • Steel
    See More

    Yukon Gear – Steel Cover For Dana 60 Standard Rotation (Part No.32321)

    Steel Cover For Dana 60 Standard Rotation

    from

    $114.99
    Product Features:
    • Fits standard rotation Dana Spicer 60
    • Steel
    See More

    Yukon Gear – Aluminum Girdle Replacement Cover For Dana 44 Ta HD (Part No.32110)

    Aluminum Girdle Replacement Cover For Dana 44 Ta HD

    from

    $359.99
    Aluminum Girdle replacement cover for Dana 44 TA HD.

    Product Features:
    • Fits standard rotation Dana Spicer 44
    • Aluminum girdle cover
    See More

    Yukon Gear – Hardcore Diff Cover For Dana 50, Dana 60 & Dana 70 (Part No.32352)

    Hardcore Diff Cover For Dana 50, Dana 60 & Dana 70

    from

    $288.99
    Product Features:
    • Nodular iron for added strength
    • Thick design
    • Durable powder coat finish
    • Magnetic drain plug
    • Made in USA
    • High strength stainless steel fasteners
    See More

    Yukon Gear – Differential (Part No.29101)

    Differential

    from

    $271.99
    Differential

    Yukon Gear – Polished Aluminum Replacement Cover For Dana 60 (Part No.32024)

    Polished Aluminum Replacement Cover For Dana 60

    from

    $269.99
    Polished aluminum replacement cover for Dana 60 (standard rotation only).

    Product Features:
    • Fits standard rotation Dana Spicer 60
    • Finned polished aluminum
    See More

    Yukon Gear – Polished Aluminum Cover For GM 12 Bolt Truck (Part No.32027)

    Polished Aluminum Cover For GM 12 Bolt Truck

    from

    $269.99
    Polished aluminum cover for 12T GM.

    Product Features:
    • Fits GM 12 bolt truck
    • Finned polished aluminum
    See More

    Yukon Gear – Chrome Replacement Cover For Dana 60 And 61 Standard Rotation (Part No.32005)

    Chrome Replacement Cover For Dana 60 And 61 Standard Rotation

    from

    $89.99
    Chrome replacement cover for Dana 60 and 61(not reverse rotation!).

    Product Features:
    • Fits standard rotation Dana Spicer 60
    • Chrome
    See More

    Best-Selling 1968 GMC K15/K1500 Pickup Differential Bearings

    Upgrade your K15/K1500 Pickup with one of our 12 best-selling Differential Bearings, earning an average 3.83 stars rating across 17 reviews.

    National – Multi-Purpose Bearing (Part No.A-37)

    Multi-Purpose Bearing

    from

    $18.99
    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 – Multi-Purpose Bearing (Part No.A-36)

    Multi-Purpose Bearing

    from

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

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

    Tapered Roller Bearing Cone

    from

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

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

    National – 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

    National – Bearing Race (Part No.382S)

    Bearing Race

    from

    $17.79
    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

    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

    Yukon Gear – Positraction Cross Pin Bolt For GM 12 Bolt Car And Truck (Part No.33344)

    Positraction Cross Pin Bolt For GM 12 Bolt Car And Truck

    from

    $28.99
    Positraction cross pin bolt for GM 12P and 12T.

    Product Features:
    • Cross pin bolt for GM 12 bolt passenger car and truck
    • For OEM positraction applications only
    See More

    FAG US – Bearing – TRB (Tapered Roller Bearing) (Part No.KT37)

    Bearing - TRB (Tapered Roller Bearing)

    from

    $28.49
    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
    See More

    National – Bearing Race (Part No.25523)

    Bearing Race

    from

    $19.99
    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

    FAG US – Cup (Part No.M88010)

    Cup

    from

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

    Product Features:
    • High-precision and High-quality components used in all KITs
    • Coverage of classic and new high-tech solutions for the best system coverage
    See More

    FAG US – Cup (Part No.LM501310)

    Cup

    from

    $9.99
    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
    See More

    Yukon Gear – Cross Pin Bolt (Part No.33067)

    Cross Pin Bolt

    from

    $6.99
    Cross pin bolt for Chrysler 8.25″, 9.25″ rear, Ford 7.5″, 8.8″, GM 12 bolt car & truck, 7.2″ IFs, 7.5″, 7.6″, 8.0″, 8.25″ IFS & 8.5″.

    Product Features:
    • Cross pin bolt for Chrysler 8.25″ and 9.25″ rear, Ford 7.5″ and 8.8″, GM 12 botl car and truck, 8.5″, 8.25″ IFS, 8.0″, 7.625″, 7.5″ and 7.2″ IFS
    See More

    Top-Quality Rear Differential Cover Gaskets for 1968 GMC K15/K1500 Pickups

    Choose a high-quality OEM or aftermarket Rear Differential Cover Gasket for GMC K15/K1500 Pickups and enjoy top-notch performance from $9.49.

    Felpro – Axle Housing Cover Gasket Irregular Shaped 12 Bolt Hole Gasket (Part No.RDS 13391)

    Axle Housing Cover Gasket Irregular Shaped 12 Bolt Hole Gasket

    from

    $9.49
    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

    Yukon Gear – Dana 44 Cover Gasket Replacement (Part No.23006)

    Dana 44 Cover Gasket Replacement

    from

    $12.99
    Product Features:
    • Cover gasket
    • Fits Dana Spicer 44
    See More

    Yukon Gear – GM 12 Bolt Truck Cover Gasket (Part No.23015)

    GM 12 Bolt Truck Cover Gasket

    from

    $12.99
    12T cover gasket.

    Product Features:
    • Cover gasket
    • Fits GM 12 bolt truck
    See More

    Victor Reinz – Differential Cover Gasket (Part No.71-14868-00)

    Differential Cover Gasket

    from

    $9.99
    With Victor Reinz gaskets, you can be sure you are getting sealing solutions that deliver OE quality gasket technology and engineering. That is because Victor Reinz is an original equipment supplier and the trusted choice of manufacturers the world over, offering broad coverage for foreign and domestic cars and trucks. In Victor Reinz gasket sets, you get the right combination of components needed for fast, long-lasting repairs.

    Product Features:
    • Choosing Victor Reinz assures getting OE quality parts in gaskets sets that have the coverage, contents, packaging and electronic cataloging to best meet the needs of the aftermarket.
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    Our Top Pick for a 1968 GMC K15/K1500 Pickup Rear Housing Cover Gasket

    Invest in a durable Rear Housing Cover Gasket for your 1968 GMC, knowing you’re getting trusted brands and expert craftsmanship.

    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
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    Top-Rated Differential Oil for 1968 GMC K15/K1500 Pickups

    Make a smart move for your 1968 GMC K15/K1500 Pickup with products all priced from $11.99 to $148.99.

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

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

    from

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

    Product Features:
    • Formulated with full-synthetic base stocks and advanced additive technology to meet the challenging demands of automatic transmissions
    • Enhanced anti-shudder protection for smooth shifting and maximum power transfer
    • Developed with anti-wear technology to help improve transmission durability
    • Engineered with a proprietary blend of base oils and advanced additives to provide better oil flow at low temperatures and greater film protection at higher temperatures
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    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
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    Yukon Gear – Redline Synthetic "Shock Proof" Oil – 3 Quarts (Part No.15000)

    Redline Synthetic "Shock Proof" Oil - 3 Quarts

    from

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

    Product Features:
    • Includes three quarts of Redline Shockproof oil
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    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
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    Top-Rated Differential Brands For Your 1968 GMC K15/K1500 Pickup

    When it comes to finding the perfect Differential for your 1968 GMC K15/K1500 Pickup, Advance Auto Parts has you covered with a wide selection of high-quality OEM and aftermarket options from 14 trusted brands. We carry the most popular Differential brands including FELPRO, National, and DriveWorks, 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 1968 GMC K15/K1500 Pickup, providing peace of mind with parts that meet or exceed OEM standards.

    Popular FELPRO 1968 GMC K15/K1500 Pickup Differentials

    If you’re looking for a top-quality Differential for your 1968 GMC K15/K1500 Pickup, 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 $7.99 and an average cost of $8.74, you’ll find the perfect Differential for your needs and budget. FELPRO Differentials for the 1968 GMC K15/K1500 Pickup come highly rated, with over 13 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.
    Axle Housing Cover Gasket Irregular Shaped 12 Bolt Hole Gasket
    from $9.49
    (3)
    Axle Housing Cover Gasket Irregular Shaped 12 Bolt Hole Gasket
    “felpro gaskets are great”

    Top-Quality National 1968 GMC K15/K1500 Pickup Differentials

    For those in search of a high-quality Differential for their 1968 GMC K15/K1500 Pickup, Advance Auto Parts offers a great selection of National Differentials. With 3 National Differentials in stock, you can trust you’re getting top-tier parts designed for durability and a perfect fit. Prices for these Differentials start at just $7.99, with an average price of $21.66, giving you a range of options to suit your budget. Backed by over 19 customer ratings and an average rating of 4.3 stars, National Differentials provide both reliability and excellent performance. Choosing a National Differential from Advance Auto Parts is a smart investment in your vehicle’s performance and longevity.
    Bearing Race
    from $7.99
    (4)
    Bearing Race
    “Goes with M88010 bearing cup. Application was the pinion bearing race for a Ford 9 Inch on a 1957 Ford F-100.”
    Multi-Purpose Bearing
    from $18.99
    (14)
    Multi-Purpose Bearing
    “Awesome Quality and Price !!”
    Shaft Repair Sleeve
    from $37.99
    (1)
    Shaft Repair Sleeve
    “Very delicate piece, but came shipped quite safely and not damaged. High quality.”

    FAQs for 1968 GMC K15/K1500 Pickup Differentials

    What are the best-selling Differentials for 1968 GMC K15/K1500 Pickups?

    Out of 406 Differentials that fit 1968 GMC K15/K1500 Pickups, the following parts are the top sellers:

    What’s the price range for 1968 GMC K15/K1500 Pickup Differentials?

    The prices of Differentials for the 1968 GMC K15/K1500 Pickup range from $0.91 up to $1,969.99 for the most premium parts.

    What is the average price of a Differential for a 1968 GMC K15/K1500 Pickup?

    The average price for Differentials for the 1968 GMC K15/K1500 Pickup is $273.97. 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 K15/K1500 Pickup model years?

    Yes, we carry Differentials for 7 model years of GMC K15/K1500 Pickups between 1966 and 1974. The following model years are the most popular for Differential purchases: 1974, 1973, 1972, 1971, 1970, 1969, 1967, and 1966.

    What are the cheapest Differentials for my 1968 GMC K15/K1500 Pickup?

    The cheapest 1968 GMC K15/K1500 Pickup Differentials we carry are:

    Does Advance Auto Parts sell Differentials for any other 1968 GMC models?

    What types of Differentials do you sell for my 1968 GMC K15/K1500 Pickup?

    As of 11/2/25, these are some of the most in-demand types of Differentials for a 1968 GMC K15/K1500 Pickup:

    Can I get help with 1968 GMC K15/K1500 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 K15/K1500 Pickup Differentials?

    Advance Auto Parts keeps returns simple. For new GMC K15/K1500 Pickup Differentials and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.