1978 Chevrolet K20 Drivetrains

Essential 1978 Chevrolet K20 Drivetrains

Yukon Gear – GM 9.5" Rear Axle Bearing And Seal Kit (Part No.10003)

GM 9.5" Rear Axle Bearing And Seal Kit

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$109.99
Yukon axle bearing & seal kits are specially designed for each application & use all high quality bearings & seals. R1561TV axle bearing and seal kit for semi-floating GM 9.5″, TorringtonBrand, 2.985″ OD, 1.700″ ID. This axle bearing & seal kit services one side only.

Product Features:
  • Fits GM applications
  • Includes axle bearing and seal
  • Services one side
  • 2.985″ O.D.
  • 1.700″ I.D.
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Yukon Gear – 4340 Chrome Moly Outer Stub For GM Truck & Blazer And Jeep Wagoneer With Disc, Uses 5-760X U/Joint (Part No.21355)

4340 Chrome Moly Outer Stub For GM Truck & Blazer And Jeep Wagoneer With Disc, Uses 5-760X U/Joint

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$249.99
4340 Chrome Moly outer stub for GM truck & Blazer and Jeep Wagoneer with disc breakes. 19 spline, 9.94″. Yukon 4340 Chrome-Moly axles provide up to 50% increased strength over stock axles for use in extreme performance applications with large tires and high horsepower. Yukon’s 4340 axles are manufactured using the latest technologies and the highest quality materials to ensure high strength and long life. Limited Lifetime warranty covers manufacturing defects and axle breakage for as long as you own the vehicle. This warranty is not transferable to another party. “No Questions Asked” replacement for first warranty return, however Yukon reserves the right to either replace axle or refund original purchase price after the first warranty claim. Yukon (through Randy’s ring & pinion) makes final determination on warranty considerations.

Product Features:
  • Fits Dana Spicer 44 in GM truck and Blazer and Jeep Wagoneer with disc brakes
  • 4340 Chromoly
  • Outer stub
  • 19 spline
  • 9.94″ from end of splines to center of u-joint bore
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Yukon Gear – Replacement Chrome Cover For Dana 44 (Part No.32004)

Replacement Chrome Cover For Dana 44

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

Product Features:
  • Fits standard rotation Dana Spicer 44
  • Chrome
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Yukon Gear – Adapter Sleeve Fro GM 8.6" & 9.5" Yokes To Use Triple Lip Pinion Seal (Part No.41150)

Adapter Sleeve Fro GM 8.6" & 9.5" Yokes To Use Triple Lip Pinion Seal

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$24.99
Product Features:
  • Fits GM 8.6″ and 9.5″
  • Sleeve to adapt standard yoke to use late model triple lip pinion seal
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Yukon Gear – Spindle Bearing & Seal Kit For Dana 50 & 60 (Part No.33497)

Spindle Bearing & Seal Kit For Dana 50 & 60

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$68.99
Spindle bearing & Seal kit for Dana 50 & 60. This replaces Spicer part number 700014.

Product Features:
  • Spindle bearing and seal kit for Dana Spicer 50 and 60
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Motive Gear – Differential Pinion Seal (Part No.3896)

Differential Pinion Seal

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$15.99
Motive Gear offers some of the toughest drive train components on the market today. If you are looking for the largest line of performance ring and pinion gear options available with gear sets in a wide range of ratios for nearly every application, both o
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Motive Gear – Differential Pinion Nut (Part No.15994582)

Differential Pinion Nut

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$17.99


Product Features:
  • NUT PINION – 14 BOLT
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Yukon Gear – Standard Open Cross Pin Shaft For Four Pinion Design For GM 10.5" 14 Bolt Truck (Part No.33405)

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

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

Product Features:
  • Cross pin shaft
  • Fits GM 10.5″ 14 bolt truck
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Yukon Gear – 1541H Replacement Inner Axle For Dana 44 With A Length Of 36.13 Inches (Part No.21054)

1541H Replacement Inner Axle For Dana 44 With A Length Of 36.13 Inches

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$271.99
Yukon 1541H replacement inner axle for Dana 44 with a length of 36.13 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:
  • 30 spline
  • 36.13″ long
  • Fits Dana Spicer 44 in 1969-1980 GM 1/2 ton
  • Left hand inner
  • 5-760X U-joint size
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Yukon Gear – Air Line Repair Kit, Zip Locker (Part No.34003)

Air Line Repair Kit, Zip Locker

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$52.99
Air line repair kit, ZIP locker.

Product Features:
  • Air line repair kit
  • Includes 20′ air line and two repair fittings
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USA Standard Gear – Master Overhaul Kit for the ’88 and Older GM 10.5" 14T Differential (Part No.37044)

Master Overhaul Kit for the '88 and Older GM 10.5" 14T Differential

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$349.99
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 1988 and down GM 10.5″ 14 bolt truck
  • Uses Koyo bearings and races
  • Included are carrier bearings and races, pinion bearings and races, pilot bearing, pinion seal, complete shim kit, pinion nut, crush sleeve, thread locker, marking compound with brush and gasket.
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Yukon Gear – Standard Open Spider Gear Kit For 8.5" GM With 30 Spline Axles (Part No.16055)

Standard Open Spider Gear Kit For 8.5" GM With 30 Spline Axles

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$207.99
Yukon standard open spider gear kit for 8.5″ GM with 30 spline axles. Yukon uses higher quality materials and better techniques than OEM to ensure a longer lasting spider gear set. All components come with a one year warranty against manufacturing defects.

Product Features:
  • Spider gear kit
  • Fits GM 8.5″ open differential with 30 spline axles
  • Includes two side gears, two pinion gears, cross pin shaft, cross pin bolt and spider gear thrust washers.
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Yukon Gear – Standard Open And Gov-Loc Cross Pin Bolt With M10X1.5 Thread For 9.5" And 9.25" GM IFS (Part No.33342)

Standard Open And Gov-Loc Cross Pin Bolt With M10X1.5 Thread For 9.5" And 9.25" GM IFS

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$23.99
Product Features:
  • Cross pin bolt
  • Fits GM 9.5″ and 9.25″ IFS
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National – Multi Purpose Bearing (Part No.HB-88107-A)

Multi Purpose Bearing

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$44.99
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
  • Controlled heat treating process for lasting performance and extended bearing life
  • Industry leading coverage
  • Professional technicians know they can depend on National
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National – Bearings (Part No.HM804846)

Bearings

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$42.99
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
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Yukon Gear – Dana 44 And GM 8.5" Front Spindle Replacement (Part No.32257)

Dana 44 And GM 8.5" Front Spindle Replacement

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$292.99
Replacement front spindle for Dana 44, & 8.5″, 6 holes, 1.625″ & 2.0″ bearing Journal, front.

Product Features:
  • Fits 1976-1991 GM 1/2 ton front, 1973-1980 GM 3/4 ton front, and 1985-1993 Dodge 1/2 ton front
  • 6 bolt holes
  • 2.00″ and 1.625″ bearing journals
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Felpro – Drive Axle Shaft Flange Gasket (Part No.55350)

Drive Axle Shaft Flange Gasket

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$4.79
Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust

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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Motive Gear – Differential Carrier (Part No.6258340)

Differential Carrier

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$205.99


Product Features:
  • GM10.5″ 14 BOLT OPEN EMPTY CASE 4:56 & UP
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Yukon Gear – 8.5 Front Cover Gasket (Part No.23021)

8.5 Front Cover Gasket

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$11.99
8.5 front cover gasket.

Product Features:
  • Cover gasket
  • Fits GM 8.5″ front
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Pro-King – Differential Case (Empty) (Part No.714A714A)

Differential Case (Empty)

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$159.99
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.
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Richmond Gear – Differential Spool Bearing Kit (Part No.29-0013-1)

Differential Spool Bearing Kit

from

$58.99
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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Yukon Gear – Eaton-Type Positraction Carbon Clutch Kit With 14 Plates For GM 14T And 10.5" (Part No.16112)

Eaton-Type Positraction Carbon Clutch Kit With 14 Plates For GM 14T And 10.5"

from

$304.99
Yukon 1480 Lifetime Series U/Joint. 4.188″ snap ring span, 1.375″ cap diameter. Outside snap ring.

Product Features:
  • Clutch kit
  • Fits GM 10.5″ 14 bolt truck with Eaton positraction
  • Carbon fiber clutches
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Yukon Gear – Eaton Positraction Shim Kit For 9.5" GM (Part No.16059)

Eaton Positraction Shim Kit For 9.5" GM

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$47.99
Eaton positraction shim kit for 9.5″ GM.

Product Features:
  • Shim kit
  • Fits GM 9.5″ Eaton positraction
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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

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$83.99
Product Features:
  • Seal housing for Dana Spicer 44
  • Includes o-rings
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Rugged Ridge – Locking Hub (Part No.15001.18)

Locking Hub

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$286.99
Approved as original equipment by vehicle manufacturers and militaries world wide, these tough hubs are built to last. A hardened nylon center is used instead of metal to keep you moving in the rare case of a hub failure. The only way to repair it is to r

Product Features:
  • Impact Resistant Nodular Iron
  • Corrosion Resistant
  • Better 4WD Performance
  • Better Fuel Economy
  • Easy Install
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National – Multi Purpose Seal (Part No.7412S)

Multi Purpose Seal

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$14.29
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:
  • Low swell in hydrocarbon fluids
  • Design type: spring loaded; multi-lip
  • Provides good low temperature capability
  • Temperature range: -40°F to 225°F; -40°C to 107°C
  • Delivers quality and reliable performance for every type of repair
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Motive Gear – Differential Carrier Shim Kit (Part No.GM9.5SSK)

Differential Carrier Shim Kit

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$21.99


Product Features:
  • KIT SHIM SIDE 9.5″ GM
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Motive Gear – Axle Shaft (Part No.GM10FAXL)

Axle Shaft

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$259.99
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:
  • GM 10BL 8.5 AXLE LEFT SIDE, 77-87
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Popular 1978 Chevrolet K20 Drivetrains Categories

1978 Chevrolet K20 Drivetrains

You count on your 1978 Chevrolet K20 to run right. That means taking care of it with regular maintenance, necessary repairs, and the right parts. Advance Auto Parts can help with all of that thanks to our extensive inventory of trusted Drivetrains. With 588 Drivetrains ranging in price from $0.91 to $1,525.00, you’re sure to find everything you need for your 1978 Chevrolet K20.

Brands matter. If you want to shop a specific Drivetrains brand, we stock 22 different brands like Moog, Valvoline, and Driveworks. 1978 Chevrolet K20 Drivetrains start as low as $0.91!

One of the best ways to find top quality OEM or aftermarket Drivetrains is by asking professionals. Short of that, you can shop with confidence thanks to our 18,690 extensive product reviews on 1978 Chevrolet K20 Drivetrains. Some of the top-rated Drivetrains products we carry are Greaseable Super Strength Universal Joint with 3.8 stars and Greaseable Super Strength Universal Joint with 4.4 stars.

Did we mention you can order your Drivetrains from our online catalog and have them shipped right to your garage? Or, if you feel like seeing the parts first-hand, search for your nearest Advance Auto Parts location above and pick up in-store when you’re ready. Browse our full Drivetrains inventory for your 1978 Chevrolet K20 below to get started!

Top-Rated Drivetrains Brands For Your 1978 Chevrolet K20

Trusted Drivetrains OEM and aftermarket product brands are what Advance Auto Parts specializes in. The brands we work with are sure to keep that 1978 Chevrolet K20 running right for years to come. In our inventory you’ll find brands like Moog, Valvoline, Driveworks, and even more.

Popular Mr. Gasket Drivetrains

You’ll find popular Mr. Gasket brand products across Differentials. All are waiting to get your 1978 Chevrolet K20 back on the road. Some of the top-rated Mr. Gasket products in these categories are:
Differential Gasket
from $18.09
(1)
Differential Gasket
Rear Differential Cover Gaskets

FAQs for 1978 Chevrolet K20 Drivetrains

What are the most purchased Drivetrains for the 1978 Chevrolet K20?

Out of 588 Drivetrains for the 1978 Chevrolet K20, the most popular in our inventory are:
Differential Cover Gasket
from $9.99
(195)
Differential Cover Gasket
Rear Housing Cover Gaskets
Universal Joint
from $15.99
(52)
Universal Joint
U-Joints

What are the top-rated 1978 Chevrolet K20 Drivetrains?

Top-rated Drivetrains for your 1978 Chevrolet K20 based on customer reviews/ratings are:
Greaseable Super Strength Universal Joint
from $36.99
(41)
Greaseable Super Strength Universal Joint
“Easy install and great way to have sting durability with access to grease points”
Greaseable Super Strength Universal Joint
from $47.99
(39)
Greaseable Super Strength Universal Joint
“Great”
Greaseable Super Strength Universal Joint
from $32.99
(37)
Greaseable Super Strength Universal Joint
“grease fitting I like location dont like needle design to grease should be regular design fitting”