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 524 Differentials from top brands with prices ranging from $0.91 to $1,525.00.

Beyond great prices, we stock trusted brands manufacturing all types of Differentials for your Chevrolet K20. Of the 15 OEM and aftermarket parts brands we carry, some of the most popular are Valvoline, Felpro, and Driveworks.

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.

Essential Chevrolet K20 Differentials

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

Differential Gasket

from

$18.09
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 – Dura Grip For Dana 44, 30 Spline, 3.92 & Up (Part No.26027)

Dura Grip For Dana 44, 30 Spline, 3.92 & Up

from

$809.99
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 Dana Spicer 44 with 30 spline axles
  • 3.92 ratio and up only
  • 4-spring, clutch style positraction
  • Internal gears are manufactured using forged 4320 steel and cut to provide stronger teeth
  • Fully rebuildable
  • Assembled in the USA
See More

National – Bearings (Part No.25523)

Bearings

from

$19.79
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

Yukon Gear – Super Carrier Shim Kit For GM 9.5" (Part No.55003)

Super Carrier Shim Kit For GM 9.5"

from

$29.99
9.5″ GM differential carrier Supershim kit.

Product Features:
  • Super carrier shim kit for GM 9.5″
  • Interlocking design makes installation much easier
See More

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

    Motive Gear – Drive Shaft Pinion Yoke (Part No.MG1310-6010)

    Drive Shaft Pinion Yoke

    from

    $117.99


    Product Features:
    • PINION YOKE
    • CAST:1310
    • U-BOLT STYLE
    See More

    Pro-King – Differential Cross Shaft (Part No.742G930)

    Differential Cross Shaft

    from

    $2.79
    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 – Chrysler 9.25" And Dana 44 / 60 Tracloc Clutch Guide Replacement (Part No.33249)

    Chrysler 9.25" And Dana 44 / 60 Tracloc Clutch Guide Replacement

    from

    $8.99
    Product Features:
    • Clutch guide for Chrysler 9.25″, Dana Spicer 44 and Dana Spicer 60
    • For Trac Loc positraction applications only
    See More

    Yukon Gear – Dana 25, 27, 30, 44, Model 20 And Model 35, GM 7.5", 8.2", 8.5", 12P, 12T, C9.25 Rear Cover Bolt (Part No.33286)

    Dana 25, 27, 30, 44, Model 20 And Model 35, GM 7.5", 8.2", 8.5", 12P, 12T, C9.25 Rear Cover Bolt

    from

    $9.99
    5/16″-18 cover bolt, Dana Spicer 25, 27, 30 and 44, AMC Model 20 and Model 35, Chrysler 9.25 rear, GM 7.5″, 7.625″, 8.2″, 8.5″, 12 bolt passenger car and truck.

    Product Features:
    • Cover bolt for Dana Spicer 25, 27, 30 and 44, AMC Model 20 and Model 35, GM 7.5″, 7.625″, 8.2″, 8.5″ and 12 bolt passenger car and truck.
    • 1/2″ head
    See More

    Pro-King – Differential Cross Shaft (Part No.742G673)

    Differential Cross Shaft

    from

    $28.49
    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 – Dana 25 / 27 / 30 / 44 / 50 Inner Oil Slinger Replacement (Part No.33012)

    Dana 25 / 27 / 30 / 44 / 50 Inner Oil Slinger Replacement

    from

    $6.99
    Product Features:
    • Inner oil slinger for Dana Spicer 25, 27, 30, 44 and 50
    See More

    USA Standard Gear – 4340 Chrome-Moly Axle, ’79-’87 GM Truck & Blazer, Rh Inner, 28Spl, Uses 5-760X U/Joint (Part No.35087)

    4340 Chrome-Moly Axle, '79-'87 GM Truck & Blazer, Rh Inner, 28Spl, Uses 5-760X U/Joint

    from

    $146.99
    19.15″ 28spline inner Right hand axle 8.5″ 79-87 GM truck & Blazer.

    Product Features:
    • 28 spline
    • 19.15″ long
    • Fits GM 8.5″ in 1979-1987 GM
    • Left hand inner
    • 5-760X U-joint size
    • 4340 Chromoly
    See More

    National – Bearings (Part No.31594)

    Bearings

    from

    $29.99
    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

    Driveworks – Differential Pinion Seal (Part No.S-8622)

    Differential Pinion Seal

    from

    $7.79
    Product Features:
    • Brand may vary by location
    See More

    Yukon Gear – Set Up Bearing (Part No.56037)

    Set Up Bearing

    from

    $189.99
    Set-up carrier bearing (2 bearings, no races) 25590. No return.

    Product Features:
    • Set up bearing kit
    • Fits Dana Spicer 44
    • Easily slips on and off carrier journals to allow for easier carrier shim adjustment
    See More

    Motive Gear – Differential Carrier (Part No.6258340)

    Differential Carrier

    from

    $205.99


    Product Features:
    • GM10.5″ 14 BOLT OPEN EMPTY CASE 4:56 & UP
    See More

    Motive Gear – Differential Gear Install Kit (Part No.GM8.5IKF)

    Differential Gear Install Kit

    from

    $35.99


    Product Features:
    • MINI INSTALL KIT GM 10BLT 8.5 FRONT
    See More

    USA Standard Gear – Spartan Locker for Dana 44 Differential with 30 Spline Axles, Includes Heavy-duty Cross Pin Shaft (Part No.17001)

    Spartan Locker for Dana 44 Differential with 30 Spline Axles, Includes Heavy-duty Cross Pin Shaft

    from

    $669.99
    The Spartan Locker, by USA Standard Gear, provides reliable traction at a low cost. Give your vehicle great traction and save some cash. Choose a Spartan Locker for better traction. The Spartan locker by USA standard gear is a mechanical locker that replaces the spiders in a standard case. The Spartan locker’s design does not use the thrust washers and has a revolutionary spring and pin design that makes installation a snap! The couplers and drivers are made from 9310 steel, for added strength. Each Spartan locker carries a one year warranty against defect.

    Product Features:
    • Fits Dana Spicer 44 with 30 spline axles
    • Made from 9310 steel for added strength
    • Replaces the spiders in a standard carrier case
    See More

    USA Standard Gear – Master Overhaul Kit for the GM 8.5 Front Differential (Part No.37056)

    Master Overhaul Kit for the GM 8.5 Front Differential

    from

    $226.99
    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 GM 8.5″ 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, crush sleeve, thread locker, marking compound with brush and gasket.
    See More

    Spectre – Differential Cover (Part No.6077)

    Differential Cover

    from

    $54.99
    Spectre’s Differential Covers are made to OEM specifications and are triple chrome plated for a lasting shine. Designed to protect the intricate moving parts of the differential, Spectre’s covers add an extra layer of protection to the vehicle’s underside. Featuring a 10-bolt design and including a gasket, this differential cover is designed to fit 1977-1991 Chevy/GMC Pickup/Suburban 1/2-3/4 ton four wheel drive front differentials. Includes 10 SAE standard chrome bolts for installation. You’ll need to supply your own bolts if your application requires metric bolts.

    Product Features:
    • 10 bolt design cover
    • Includes gasket
    • Triple chrome plated for a lasting shine
    • 10 chrome 5/16 inch -18 x 3/4 inch differential cover bolts included
    See More

    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
    See More

    Yukon Gear – Dana 30 & Dana 44 Power Lok Bolt, Left Hand, & 8.75" Chrysler & 55P (Part No.33234)

    Dana 30 & Dana 44 Power Lok Bolt, Left Hand, & 8.75" Chrysler & 55P

    from

    $26.99
    Dana 30 & Dana 44 Power Lok bolt, left hand, & 8.75″ Chrysler & 55P.

    Product Features:
    • Power Lok case bolt for Dana Spicer 30, Dana Spicer 44, Chrysler 8.75″ and 1955-1964 GM passenger car
    • Left hand thread
    See More

    Yukon Gear – Replacement Oil Baffle For Dana 44 (Part No.33000)

    Replacement Oil Baffle For Dana 44

    from

    $6.99
    Product Features:
    • Oil baffle for Dana Spicer 44
    See More

    Driveworks – Oil Seal (Part No.S-471424)

    Oil Seal

    from

    $4.49
    Value-priced seal meets all cataloged application requirements.

    Product Features:
    • Brand may vary by location
    See More

    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″
    See More

    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 $18.09
    (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:
    Differential Cover Gasket
    from $9.99
    (195)
    Differential Cover Gasket
    Rear Housing Cover Gaskets
    Tapered Cone/Cup Wheel Bearing Set
    from $13.99
    (14)
    Tapered Cone/Cup Wheel Bearing Set
    Differential Bearings

    FAQs for Chevrolet K20 Differentials

    What are the most purchased Differentials for the Chevrolet K20?

    Out of 524 Differentials for the Chevrolet K20, the most popular in our inventory are:
    Differential Cover Gasket
    from $9.99
    (195)
    Differential Cover Gasket
    Rear Housing Cover Gaskets
    Tapered Cone/Cup Wheel Bearing Set
    from $13.99
    (14)
    Tapered Cone/Cup Wheel Bearing Set
    Differential Bearings
    Differential Cover Gasket
    from $6.79
    (13)
    Differential Cover 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:
    Differential Ring And Pinion
    from $342.99
    (23)
    Differential Ring And Pinion
    “So far so good.”
    Differential Cover Gasket
    from $7.99
    (20)
    Differential Cover Gasket
    “Works”
    Differential Shaft Lock Bolt
    from $5.99
    (11)
    Differential Shaft Lock Bolt
    “great”