Chevrolet K20 Differentials

Your One-Stop Shop For Trusted Chevrolet K20 Differentials

If you’re in search of Chevrolet K20 Differentials aftermarket or OEM parts, consider your search over! Advance Auto Parts carries 516 Differentials from top brands with prices ranging from $0.91 to $1,566.99.

Beyond great prices, we stock trusted brands manufacturing all types of Differentials for your Chevrolet K20.

And don’t forget to read customer reviews across all Differentials categories in our catalog. Buy with confidence by leveraging past customer experiences of our aftermarket and OEM parts.

At Advance Auto Parts, we don’t think top quality Differentials have to cost top dollar, and we prove it. Browse our top Chevrolet K20 Differentials below, order online to ship to your home, or head into your nearest Advance Auto Parts location to get started.

Please Select your Vehicle to See Exact Fit Parts

Essential Chevrolet K20 Differentials

Yukon Gear – Seal Housing For Dana 44, Zip Locker, With O-Rings (Part No.34013)

Seal Housing For Dana 44, Zip Locker, With O-Rings

from

$83.99
Product Features:
  • Seal housing for Dana Spicer 44
  • Includes o-rings
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Yukon Gear – 8.5 Front Cover Gasket (Part No.23021)

8.5 Front Cover Gasket

from

$11.99
8.5 front cover gasket.

Product Features:
  • Cover gasket
  • Fits GM 8.5″ front
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Dorman – Help – Differential Shaft Lock Bolt (Part No.81048)

Differential Shaft Lock Bolt

from

$6.79
This differential pinion shaft lock bolt is designed to match the fit and function of the original part on specified vehicles. Made of quality materials, it is engineered for reliable performance.

Product Features:
  • Direct replacement – this differential pinion shaft lock bolt matches the fit and function of the factory part on specified years, makes and models
  • Ideal solution – this bolt is a reliable replacement for an original part that is missing or has failed due to fatigue
  • Durable construction – this part is made from quality materials to ensure reliable performance and long service life
  • Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
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Yukon Gear – 10.5" GM 14 Bolt Truck Ring Gear Bolt (Part No.33051)

10.5" GM 14 Bolt Truck Ring Gear Bolt

from

$10.99
14T ring gear bolt 4.11 & down. 9/16″ x 18. 2.085″ overall length.

Product Features:
  • Ring gear bolt for GM 10.5″ 14 bolt truck
  • 4.11 and down ratio
  • 1/2″ x 18 thread
  • 2.085″ overall length
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Yukon Gear – Spider Gear Set For GM 9.5" Gura Drip Posi (Part No.16166)

Spider Gear Set For GM 9.5" Gura Drip Posi

from

$561.99
Yukon spider gear set for GM 9.5″ Gura Drip posi. This kit does not include clutches. This kit fits Yukon Dura Grip ONLY.

Product Features:
  • Spider gear kit
  • Fits GM 9.5″ with Dura Grip positraction
  • Includes two side gears, four pinion gears, cross pin shaft, roll pin and spider gear thrust washers.
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Yukon Gear – Standard Open Side Gear Thrust Washer For 8.5" GM (Part No.33304)

Standard Open Side Gear Thrust Washer For 8.5" GM

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$15.99
Standard open side gear thrust washer for 8.5″ GM.

Product Features:
  • Side gear thrust washer
  • Fits GM 8.5″
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Yukon Gear – Steel Spool For GM 14 Bolt Truck With 30 Spline Axles, 4.10 & Down (Part No.32048)

Steel Spool For GM 14 Bolt Truck With 30 Spline Axles, 4.10 & Down

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$539.99
Yukon Performance steel spool for GM 14T with 30 spline axles. fits 4.10 and down. Yukon performance spools are made from the highest quality materials to ensure high strength and long life in performance applications. Spools provide 100% power to both tires at all times and are a lower cost alternative to lockers. Spools are not recommended for street driven vehicles. Yukon Performance spools come with a one year warranty against manufacturing defects.

Product Features:
  • Fits GM 10.5″ 14 bolt truck with 30 spline axles
  • 4.10 and down ratio only or 4.56 and up thick gears
  • Provides 100% traction to both wheels at all times
  • Not recommended for street driven vehicles
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Powertrax – Lock Right Locker (Part No.1921-LR)

Lock Right Locker

from

$368.99
The Powertrax Lock-Right ultra-strength alloy locker’s straight-line performance is equal to a solid spool, but automatically unlocks in turns. Best suited for extreme off-road to severe on-road use, Powertrax Lock Right lockers replace the spider gears in your open differential carrier using basic tools and without affecting your ring and pinion settings. The whole job can be done in your driveway in a couple of hours, pin included! 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!
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    Yukon Gear – Powr Lok Flat Driven Plate For Dana 44 (Part No.16173)

    Powr Lok Flat Driven Plate For Dana 44

    from

    $31.99
    Product Features:
    • Driven plate
    • Fits Dana Spicer 44 Powr Lok
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    Yukon Gear – Powr Lok Button Kit For Dana 30, Dana 44 & Chrysler 8.75" (Part No.33536)

    Powr Lok Button Kit For Dana 30, Dana 44 & Chrysler 8.75"

    from

    $67.99
    Yukon Ring & Pinion sets give you the confidence of knowing you’re running gears designed for the harshest of conditions. Whether it’s on the street, off-road, or at the track; Yukon ring & pinion sets deliver unrivaled performance & quality. Yukon uses t

    Product Features:
    • Powr Lok button kit
    • Fits Dana Spicer 30, 44 and Chrysler 8.75″
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    Motive Gear – Differential Pinion Shim Kit (Part No.1102)

    Differential Pinion Shim Kit

    from

    $9.99


    Product Features:
    • KIT SHIM PINION
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    USA Standard Gear – Standard Spider Gear Set For 33 Spline GM 9.5" And Pre ’06 GM 9.25IFS (Part No.39029)

    Standard Spider Gear Set For 33 Spline GM 9.5" And Pre '06 GM 9.25IFS

    from

    $214.99
    Product Features:
    • Spider gear kit
    • Fits GM 9.5″ open differential
    • Includes two side gears, two pinion gears, cross pin shaft, cross pin bolt and spider gear thrust washers.
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    Yukon Gear – Pinion Install Kit For ’97 & Down GM 9.5" Differential (Part No.13075)

    Pinion Install Kit For '97 & Down GM 9.5" Differential

    from

    $319.99
    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 1997 and down GM 9.5″
    • Included are pinion bearings and races, pinion seal, crush sleeve, complete pinion shim kit, and marking compound with brush.
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    Richmond Gear – MiniSpool (Part No.78-1230-1)

    MiniSpool

    from

    $151.99
    MiniSpool

    Richmond Gear – Differential Cross Shaft (Part No.80-0272-1)

    Differential Cross Shaft

    from

    $66.99
    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.
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    Motive Gear – Differential Ring and Pinion (Part No.D44-392)

    Differential Ring and Pinion

    from

    $229.99


    Product Features:
    • DANA 44 R/P 3.92 STD MG
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    National – Shaft Repair Sleeve (Part No.99155)

    Shaft Repair Sleeve

    from

    $38.99
    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
    • Installation tool reduces sleeve distortion and allows for installation without removal from the shaft
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    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
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    LuK – Repair Kit, Differential (Part No.GDK321)

    Repair Kit, Differential

    from

    $264.99
    Each LuK Differential Bearing Kit contains all the OE quality bearings needed for a professional transmission repair. Differential bearing kits are the perfect repair solution for a broken transmission. We carefully select OE quality components for each individual transmission for a professional repair.

    Product Features:
    • LuK Differential Bearing Kits are designed to meet or exceed OEM requirements. This will ensure customer satisfaction.
    • LuK Differential Bearing Kits contain the bearings and seals needed to complete the job.
    • LuK Differential Bearing Kits include wear parts such as seals, O-rings, shaft sealing rings, support bearings and spare parts where necessary for eliminating the specific cause of failure.
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    National – Multi-Purpose Bearing (Part No.A-42)

    Multi-Purpose Bearing

    from

    $44.99
    Product Features:
    • CONSISTENT PERFORMANCE: Matched cup and cone components ensure consistent performance
    • PREMIUM MATERIALS: Precision manufactured using premium-grade steel for outstanding durability and performance
    • SMOOTH ROTATION: Crowned raceways and rollers for even load distribution
    • OE-STYLE DESIGN: Engineered to meet OE specifications
    • COMPREHENSIVE COVERAGE: Industry-leading coverage for domestic and import applications
    • RIGOROUS TESTING: Comprehensive testing throughout design and development processes by National engineers for quality you can count on
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    USA Standard Gear – Master Overhaul Kit for the Dana 44 Differential with 30 Spline (Part No.37008)

    Master Overhaul Kit for the Dana 44 Differential with 30 Spline

    from

    $289.99
    USA Standard Master Overhaul kits let you finish your install with confidence. This kit uses Koyo bearings and races. Included are carrier bearings and races, pinion bearings and races, pinion seal, complete shim kit, ring gear bolts, pinion nut, crush sleeve (if applicable), oil baffles and slingers (if applicable), threading locking compound, marking compound with brush and gasket.

    Product Features:
    • Fits standard rotation Dana Spicer 44 front
    • Uses Koyo bearings and races
    • Included are carrier bearings and races, pinion bearings and races, pinion seal, axle seals, complete shim kit, ring gear bolts, pinion nut, oil baffles and slingers, thread locker, marking compound with brush and gasket.
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    Yukon Gear – 8.5" & 8.2" GM Carrier Installation Kit (Part No.57008)

    8.5" & 8.2" GM Carrier Installation Kit

    from

    $109.99
    Yukon Carrier installation kits are great, low cost kit for carrier changes such as Positraction or locker upgrades. Carrier installation kit for GM 8.2″ & 8.5″ differential. This kit contains carrier bearings, races and shims.

    Product Features:
    • Fits GM 7.5″, 7.625″ 8.2″ and 8.5″
    • Includes carrier bearings and races and “super” carrier shim kit
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    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 – Dura Grip Positraction For 10.5" GM 14 Bolt Truck, 4.10 & Down (Part No.26030)

    Dura Grip Positraction For 10.5" GM 14 Bolt Truck, 4.10 & Down

    from

    $1110.00
    The Yukon Dura Grip provides aggressive yet smooth traction to give you the confidence & performance you need. Get longer life and better traction with the heavy duty Yukon Dura Grip Positraction. The Yukon Dura Grip uses a nodular case and forged 4320 internals for added strength along with composite clutches for high performance and long life. All units are Rebuildable and many offer upgrades to increase aggressiveness for racing applications. Each unit carries a one year warranty against defects.

    Product Features:
    • Fits GM 10.5″ 14 bolt truck
    • 4.10 ratio and down only
    • Clutch style positraction
    • Internal gears are manufactured using forged 4320 steel and cut to provide stronger teeth
    • Fully rebuildable
    • Assembled in the USA
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    Felpro – Axle Housing Cover Gasket Irregular Shaped 10 Bolt Hole Gasket (Part No.RDS 55075)

    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
    • 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
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    Chevrolet K20 Differentials List

    Differentials Brands You Can Trust For Your Chevrolet K20

    15 trusted brands of Differentials line our shelves, ready to help keep your Chevrolet K20 running smooth. Below are some of the most popular brands and their top Differentials offerings:

    Popular Mr. Gasket Differentials

    Mr. Gasket products for the Chevrolet K20 span several categories. Some of the highest-rated Mr. Gasket Differentials that will fit your Chevrolet K20 are:
    Differential Gasket
    from $21.49
    (1)
    Differential Gasket
    Rear Differential Cover Gaskets

    Most Purchased Chevrolet K20 Differentials from Valvoline

    When you buy the most frequently purchased Valvoline brand Differentials, you can be confident it will be the right part for your Chevrolet K20. Here are the Valvoline Differentials Advanced Auto customers buy the most:
    Axle Housing Cover Gasket Oval Shaped 10 Bolt Hole Gasket
    from $10.99
    (195)
    Axle Housing Cover Gasket Oval Shaped 10 Bolt Hole Gasket
    Rear Housing Cover Gaskets

    FAQs for Chevrolet K20 Differentials

    What are the most purchased Differentials for the Chevrolet K20?

    Out of 516 Differentials for the Chevrolet K20, the most popular in our inventory are:
    Axle Housing Cover Gasket Oval Shaped 10 Bolt Hole Gasket
    from $10.99
    (195)
    Axle Housing Cover Gasket Oval Shaped 10 Bolt Hole Gasket
    Rear Housing Cover Gaskets
    Axle Housing Cover Gasket: Irregular Shaped 14 Bolt Hole Gasket
    from $8.29
    (13)
    Axle Housing Cover Gasket: Irregular Shaped 14 Bolt Hole Gasket
    Rear Housing Cover Gaskets
    Axle Housing Cover Gasket: Irregular Shaped 14 Bolt Hole Gasket
    from $8.99
    (20)
    Axle Housing Cover Gasket: Irregular Shaped 14 Bolt Hole Gasket
    Rear Differential Cover Gaskets

    What are the top-rated Chevrolet K20 Differentials?

    Top-rated Differentials for your Chevrolet K20 based on customer reviews/ratings are:
    Multi-Purpose Seal
    from $22.49
    (20)
    Multi-Purpose Seal
    “worked great”
    Differential Shaft Lock Bolt
    from $6.79
    (11)
    Differential Shaft Lock Bolt
    “great”