1978 Chevrolet G30 Differentials

Essential 1978 Chevrolet G30 Differentials

Yukon Gear – Dura Grip Positraction For GM 9.5" With 33 Spline Axles (Part No.26025)

Dura Grip Positraction For GM 9.5" With 33 Spline Axles

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$988.99
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 GM 9.5″
  • 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
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Yukon Gear – Standard Open Spider Gear Kit For 33 Spline GM 9.25" IFS And GM 9.5" Axles (Part No.16060)

Standard Open Spider Gear Kit For 33 Spline GM 9.25" IFS And GM 9.5" Axles

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$317.99
Yukon standard open spider gear kit for 9.5″ GM rear and ’06 and earlier GM 9.25″ IFS with 33 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 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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Pro-King – Differential Internal Nest Kit (Part No.744A717)

Differential Internal Nest Kit

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$323.99
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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Felpro – DIFFERENTIAL GASKET (Part No.RDS 6095-1)

DIFFERENTIAL GASKET

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$8.29
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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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 – Pinion Install Kit For ’97 & Down GM 9.5" Differential (Part No.13075)

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

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$306.99
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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Yukon Gear – Set Up Bearing (Part No.56040)

Set Up Bearing

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$288.99
Set-up carrier bearing kti (2 bearings, no races) for Dana 70 HD and Dana 80. 469. No return.

Product Features:
  • Set up bearing kit
  • Fits Dana Spicer 80
  • Easily slips on and off carrier journals to allow for easier carrier shim adjustment
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Felpro – Differential Cover Gasket (Part No.RDS 6014)

Differential Cover Gasket

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$15.99
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 Gear Install Kit (Part No.GM9.5IK)

Differential Gear Install Kit

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$58.49


Product Features:
  • MINI-INSTLTN KT-9 1/2″ GM
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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 – Zip Locker For Dana 60 With 35 Spline Axles, 4.56 & Up (Part No.34024)

Zip Locker For Dana 60 With 35 Spline Axles, 4.56 & Up

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$1487.99
The Yukon Zip Locker is the latest in on-demand traction. Its air-operated design allows you to switch from an open differential to 100% lockup when you need it, giving you the ultimate in driver selectability. The Yukon Zip locker is an air operated locker that provides selectable traction for off road or street use. This unit features 4320 Chrome Moly internals for added strength. Assembled in the USA! compressor sold separately. All Zip Lockers are backed by the best warranty in the business! All Zip Lockers come with a six (6) year warranty, including any collaterally damaged parts and associated labor, up to $2,000, for the first two (2) years. This is a narrow case locker. If you have a wide housing, please order two DS 42563 with your locker. This locker is ABS compatible.

Product Features:
  • Fits Dana Spicer 60 with 35 spline axles
  • 4.56 and up ratio only
  • Forged case and 8620 internals for added strength
  • Works with a variety of air delivery systems
  • Assembled in the USA
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USA Standard Gear – Ring & Pinion Gear Set For GM 9.5" In A 3.73 Ratio (Part No.36224)

Ring & Pinion Gear Set For GM 9.5" In A 3.73 Ratio

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$359.99
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 GM 9.5″
  • 9.50″ ring gear diameter
  • 30 spline pinion
  • 12 ring gear bolts
  • 3.73 ratio
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Motive Gear – Drive Shaft Pinion Yoke (Part No.MG1310-6010)

Drive Shaft Pinion Yoke

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$117.99


Product Features:
  • PINION YOKE
  • CAST:1310
  • U-BOLT STYLE
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Yukon Gear – Replacement Shim Kit For Dana 80 (Part No.55025)

Replacement Shim Kit For Dana 80

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$89.99
Product Features:
  • Complete shim kit for Dana Spicer 80
  • 4.125″ O.D. pinion bearing application only
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Pro-King – Differential Pinion Gear Washer (Part No.744A216)

Differential Pinion Gear Washer

from

$3.19
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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Yukon Gear – 1541H Alloy 8 Lug Rear Axle For ’83-’95 GM 9.5" G30 (Part No.21250)

1541H Alloy 8 Lug Rear Axle For '83-'95 GM 9.5" G30

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$435.99
Yukon 1541H alloy 8 lug rear axle for ’83-’95 GM 9.5″ G30 with a length of 35-5/16″ inches and 33 splines. Yukon 1541H alloy axles offer a strength increase over stock while retaining a low cost. Yukon 1541H alloy rear axles come with a one year warranty against manufacturing defects. This is a C-clip axle.

Product Features:
  • 33 spline
  • 8 lug
  • 35 5/16″ long
  • Fits GM 9.5″ in G30 van
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Yukon Gear – Pinion Seal For 9.5" GM (’79-’97) (Part No.30043)

Pinion Seal For 9.5" GM ('79-'97)

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$37.99
Pinion seal for 9.5″ GM (’79-’97).Yukon Mighty seal.

Product Features:
  • Pinion seal
  • Fits 1997 and down GM 9.5″
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Driveworks – Taper Bearing Set (Part No.S-A-38)

Taper Bearing Set

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$13.79
Value-priced bearing meets all cataloged application requirements.

Product Features:
  • Brand may vary by location
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National – Bearings (Part No.HM88510)

Bearings

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$14.29
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 – Pinion Nut (Part No.33152)

Pinion Nut

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$9.99
Pinion nut for GM 7.2″ IFS, 7.5″, 7.6″, 7.6″ IFS, 8.0″, 8.25″, 8.5″, 8.6″, 9.25″ IFS, 9.5″ & Oldsmobile Dropouts. 1 1/4″ socket, 7/8″ x 14 thread.

Product Features:
  • Pinion nut for GM 7.2″, 7.5″, 7.625″, 8.0″, 8.25″ IFS, 8.5″, 8.6″, 9.25″ IFS and 9.5″
  • 7/8″ x 14 thread
  • 1 1/4″ socket
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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

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$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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Dorman – Differential Pinion Yoke Assembly (Part No.697-545)

Differential Pinion Yoke Assembly

from

$313.99
Worn or damaged differential end yoke causing driveline vibrations? This direct replacement end yoke matches the original equipment part for a trustworthy repair and reliable performance.

Product Features:
  • Direct replacement – this differential end yoke matches the fit and construction of the original yoke
  • Excellent value – this replacement end yoke offers original equipment quality at a fraction of the price of dealer parts
  • Quality materials – this end yoke is machined from cast iron for strength and is precision machined for reliability
  • Validated fit – this differential end yoke has been tested to confirm accurate fit
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National – Bearings (Part No.HM803149)

Bearings

from

$36.49
National Oil Seals & Bearings offer a full line of premium oil seals and bearings.

Product Features:
  • Premium bearing design matches OEM specifications
  • Precision manufactured using premium-grade steel for outstanding durability and performance
  • Crowned raceways and rollers to ensure even load distribution for maximum life
  • Industry leading coverage
  • Professional technicians know they can depend on National
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Yukon Gear – 10.5" GM 14 Bolt Truck Crush Sleeve (Part No.33108)

10.5" GM 14 Bolt Truck Crush Sleeve

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$7.99
10.5″ GM 14 bolt truck crush sleeve, 1988 & OLDER. Approx 0.825″ long.

Product Features:
  • Crush sleeve for 1988 and down GM 10.5″ 14 bolt truck
  • 0.825″ tall
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Yukon Gear – Steel Spool For Dana 60 With 35 Spline Axles, 4.10 & Down (Part No.32042)

Steel Spool For Dana 60 With 35 Spline Axles, 4.10 & Down

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$506.99
Yukon Performance steel spool for Dana 60 with 35 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 Chrysler Dana Spicer 60 with 35 spline axles
  • 4.10 and down ratio only
  • Provides 100% traction to both wheels at all times
  • Not recommended for street driven vehicles
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Motive Gear – Differential Master Bearing Kit – Timken (Part No.R70URMKT)

Differential Master Bearing Kit - Timken

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$198.99
Motive Gear Differential Bearing Kits Include Front & Rear Pinion Bearing, Pinion Seal, Carrier Bearings, Pilot Bearing Where Applicable, Gear Marking Compound, Crush Sleeve, Pinion Nut, Brush, Thread Locking Compound And Cover Gasket Or Rtv

Product Features:
  • BRG KIT MASTER DANA 70U TIMKEN
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Yukon Gear – Grizzly Locker For GM 10.5" 14 Bolt Truck With 30 Spline Axles (Part No.28015)

Grizzly Locker For GM 10.5" 14 Bolt Truck With 30 Spline Axles

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$828.99
The Yukon Grizzly Locker is the ultimate in locking differentials for street, off-road, & drag racing. Grizzly Lockers provide 100% power to both tires, while still allowing for disengagement while negotiating turns. The Yukon Grizzly locker is a mechanical locking differential. It features 8620 internals for maximum strength. It’s patented design reduces common locker failures. All units assembled in the USA! All Grizzly Lockers are backed by the best warranty in the business! Yukon covers the replacement unit and covers any collaterally damaged parts and associated labor, up to $2,000!

Product Features:
  • Fits GM 10.5″ 14 bolt truck
  • Installs into standard open carrier
  • Patented internal design reduces common locker failures
  • 8620 internals for added strength
  • Assembled in the USA
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Yukon Gear – Redline Synthetic "Shock Proof" Oil – 4 Quarts (Part No.15004)

Redline Synthetic "Shock Proof" Oil - 4 Quarts

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$137.99
Redline Synthetic “Shock Proof” Oil. 4 Quarts.

Product Features:
  • Includes four quarts of Redline Shockproof oil
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1978 Chevrolet G30 Differentials

Maybe you’re in the middle of a full rebuild of that 1978 Chevrolet G30. Maybe you just need a couple of Differentials. Either way, Advance Auto Parts has 100 different Differentials in our inventory ranging from $1.89 to $613.99. That means you can find the exact parts or products you need to keep that 1978 Chevrolet G30 running smoothly.

Differentials are only as good as their brand. We stock 11 different brands to make sure you have plenty of trusted parts to choose from for your 1978 Chevrolet G30. National, Yukon Gear, and Felpro are just some of the brands we stock. Search for brands you know or compare prices and reviews to help you decide!

We know you’ll find the perfect Differentials for your 1978 Chevrolet G30, but don’t take our word for it – read our customer ratings and reviews and buy with confidence. Out of the 200 reviews in this category, some of the top rated parts include DIFFERENTIAL GASKET with 3.0 stars and Differential Ring and Pinion with 4.0 stars.

So if you’re in the market for aftermarket Differentials to keep your 1978 Chevrolet G30 rolling for years to come, look no further. Shop online and have your products shipped direct to your door, or pick up at the nearest Advance Auto Parts location today!

Differentials Brands To Make Your 1978 Chevrolet G30 Last

Simple repair, complete replacement, or a full rebuild. No matter the job, your 1978 Chevrolet G30 demands trusted brand parts and products to keep it running. Many trusted brands of Differentials make up Advance Auto Parts’ inventory, and all are ready to help make your G30 the best it can be. Be sure to browse some of our top Differentials brands and parts.

Popular National Differentials

We carry National parts in our stock across Differential Bearings categories, plus more. For a 1978 Chevrolet G30, our most popular National Differentials include:
Bearings
from $22.99
(12)
Bearings
Differential Bearings
Bearings
from $16.99
(6)
Bearings
Differential Bearings

FAQs for 1978 Chevrolet G30 Differentials

What are the most purchased Differentials for the 1978 Chevrolet G30?

Out of 100 Differentials for the 1978 Chevrolet G30, the most popular in our inventory are:
3 Qt - Penzoil 80W90 Conventional Gear Oil
from $44.99
This product is not rated
3 Qt – Penzoil 80W90 Conventional Gear Oil
Differential Oil
Pinion Crush Sleeves
from $5.29
This product is not rated
Pinion Crush Sleeves
Differential Crush Sleeves
Differential Cover Gasket
from $15.99
(1)
Differential Cover Gasket
Front Differential Cover Gaskets

What are the top-rated 1978 Chevrolet G30 Differentials?

Top-rated Differentials for your 1978 Chevrolet G30 based on customer reviews/ratings are:
DIFFERENTIAL GASKET
from $8.29
(4)
DIFFERENTIAL GASKET
“Great Product”
Differential Ring and Pinion
from $245.99
(1)
Differential Ring and Pinion
“You get a good set of gears for a good price. Found same set other places for a lot more money. Would recommend this .”
Differential Pinion Bearing Kit - Timken
from $97.99
(1)
Differential Pinion Bearing Kit – Timken
“Needed a rear diff bearing kit. Ordered what I thought was a rear bearing kit because the description said it was a complete kit. I recieved a pinion ”