1978 GMC C25 Differentials

Name: DiffrlPinSupportBolt
Brand: Yukon Gear
SKU: 33582
Price: 5.99 USD

Find your specific 1978 GMC C25 original or aftermarket Differentials below. Order your parts online and have delivered to your home or pick up in-store at Advance Auto.

Essential 1978 GMC C25 Differentials

from

$5.99

DiffrlPinSupportBolt

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$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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$24.29

TAPERED ROLLER BEARI

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$168.99

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:

AXLE SHAFT 10.5″ 30 SPL. 37 9/16″ R.H.

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$11.99

10.5″ GM 14 bolt truck ring gear bolt 4.56 & up. 9/16″ x 18. 2.522″ overall length.

Product Features:

Ring gear bolt for GM 10.5″ 14 bolt truck
4.56 and up ratio
1/2″ x 18 thread
2.522″ overall length

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$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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$299.99

Yukon yoke for GM 10.5″ 14 bolt truck, 1410, strap style. 4.188″ snap ring span, 1.188″ cap diameter. Outside snap ring. All Yukon yokes come with a one year warranty against manufacturing defects.

Product Features:

Fits GM 10.5″ 14 bolt truck
30 spline
1410 u-joint size
4.188″ snap ring span
1.188″ cap diameter
Outside snap ring design
Strap style

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$315.99

Yukon standard open spider gear kit for GM 10.5″ and 14T 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 10.5″ 14 bolt truck open differential
Includes two side gears, four pinion gears, cross pin shaft, cross pin bolt and spider gear thrust washers.

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$219.99

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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$287.99

Yukon mini spool for GM 10.5″ 14 bolt truck.

Product Features:

Fits 10.5″ GM 14 bolt truck
Provides 100% traction to both wheels at all times
Installs into standard open carrier case

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$17.99

Product Features:

NUT PINION – 14 BOLT

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$689.99

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 most standard one ton applications. This unit is works with differentials up to one-ton applcations. It is not compatible with 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
Not compatible with Dana 70HD, Dana 80, Ford 10.25″ and 10.5″ or Gm and Chrysler 11.5″ applications

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$19.99

Pinion seal for GM 14T.Yukon Mighty seal.

Product Features:

Pinion seal
Fits 1998 and down GM 10.5″ 14 bolt truck

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$591.99

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!

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$11.99

Product Features:

CRUSH SLEEVE 14 BOLT 10.5 3116

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$215.99

Bearing race driver. No return.

Product Features:

Bearing race driver
Fits M802011 race
All steel construction

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$22.99

Product Features:

KIT SHIM GM 10.5 14 BLT

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$349.99

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 1988 and down GM 10.5″ 14 bolt truck
Included are pinion bearings and races, pinion seal, crush sleeve, complete pinion shim kit, and marking compound with brush.

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$102.99

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:

KIT BRG & SL 12 BLT 8 7/8

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$59.99

Chrome cover for GM 14T.

Product Features:

Fits GM 10.5″ 14 bolt truck
Chrome

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$69.99

Product Features:

MINI INSTALL KIT GM 12BLT 8.875 TRUCK

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$23.99

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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$108.99

Yukon Minimum installation kits are a low cost solution for gear changes in newer vehicles where the bearings can be reused. This kit uses all high quality components to ensure a smooth set up. kit includes a pinion seal, crush sleeve (if applicable), complete shim kit, marking compound and brush.

Product Features:

Fits 1988 and down GM 10.5″ 14 bolt truck
Included are a pinion seal, crush sleeve , complete shim kit, marking compound and brush.

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$6.79

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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$7.99

14T side gear Thrust washer.

Product Features:

Side gear thrust washer
Fits GM 10.5″ 14 bolt truck

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$8.99

14T pinion gear Thrust washer.

Product Features:

Pinion gear thrust washer
Fits GM 10.5″ 14 bolt truck

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$5.99

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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$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

Popular 1978 GMC C25 Differentials Categories

Differential Oil

Rear Differential Cover Gaskets

Differential Open Unit and Components

Differential Covers

Differential Pinion Shaft Lock Bolts

Differential Bearings

Differential Axle Shafts

Differential Pinion Pilot Bearings

Differential Carriers

Differential Bearing Kits

Front Differential Pinion Bearings

Differential Rebuild Kits

Differential Carrier Shim Kits

Differential Pinion Seals

Differential Clutch Packs

Differential Ring and Pinions

Differential End Yokes

Differential Spools

Differential Pinion Bearing Kits

Complete Differentials

Differential Ring Gear Bolts

Bearing Race Drivers

Differential Crush Sleeves

Differential Side Bearing Spacers

Differential Pinion Shims

Differential Pinion Shaft Nuts

Differential Gear Install Kits

Differential Cross Pins

Differential Side Gear Thrust Washers

Differential Pinion Gear Thrust Washers

Differential Drive Pinion Gear Bearing Retainer Bolts

Limited Slip Differential Assemblies

Differential Spider and Pinion Gear Kits

Maybe you’re in the middle of a full rebuild of that 1978 GMC C25. Maybe you just need a couple of Differentials. Either way, Advance Auto Parts has 139 different Differentials in our inventory ranging from $0.91 to $1,566.99. That means you can find the exact parts or products you need to keep that 1978 GMC C25 running smoothly.

Differentials are only as good as their brand. We stock 14 different brands to make sure you have plenty of trusted parts to choose from for your 1978 GMC C25. Valvoline, FELPRO, and Yukon Gear 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 GMC C25, but don’t take our word for it – read our customer ratings and reviews and buy with confidence. Out of the 396 reviews in this category, some of the top rated parts include Differential Shaft Lock Bolt with 4.0 stars and Differential Ring And Pinion with 5.0 stars.

So if you’re in the market for aftermarket Differentials to keep your 1978 GMC C25 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 GMC C25 Last

Simple repair, complete replacement, or a full rebuild. No matter the job, your 1978 GMC C25 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 C25 the best it can be. Be sure to browse some of our top Differentials brands and parts.

Popular Mr. Gasket Differentials

We carry Mr. Gasket parts in our stock across Rear Differential Cover Gaskets categories, plus more. For a 1978 GMC C25, our most popular Mr. Gasket Differentials include:

from $18.09

(1)

Differential Gasket

Rear Differential Cover Gaskets

Top 1978 GMC C25 Differentials from Valvoline

Valvoline products are another trusted brand when it comes to Differentials for your 1978 GMC C25. Popular Valvoline parts include:

from $35.99

(17)

DEX/MERC Automatic Transmission Fluid, 1 Gallon

Differential Oil

from $14.49

(2)

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

Differential Oil

FAQs for 1978 GMC C25 Differentials

What are the most purchased Differentials for the 1978 GMC C25?

Out of 139 Differentials for the 1978 GMC C25, the most popular in our inventory are:

from $6.79

(13)

Differential Cover Gasket

Rear Differential Cover Gaskets

from $57.99

This product is not rated

3 Qt – 80W90 Conventional Gear Oil With Posi Additive

Differential Oil

from $23.99

(7)

Bearings

Front Differential Pinion Bearings

What are the top-rated 1978 GMC C25 Differentials?

Top-rated Differentials for your 1978 GMC C25 based on customer reviews/ratings are:

from $5.99

(11)

Differential Shaft Lock Bolt

“great”

from $350.99

(7)

Differential Ring And Pinion

“Great spark plugs.”

from $8.49

(3)

Differential Carrier Shim Kit

“worked great”

1978 GMC C25 Differentials

More 1978 GMC C25 Differentials

Essential 1978 GMC C25 Differentials

Yukon Gear – DiffrlPinSupportBolt (Part No.33582)

Yukon Gear – Redline Synthetic "Shock Proof" Oil With Positraction Additive – 4 Quarts (Part No.15005)

FAG US – TAPERED ROLLER BEARI (Part No.KT45)

Motive Gear – Axle Shaft (Part No.MG1774)

Yukon Gear – 10.5" GM 14 Bolt Truck Ring Gear Bolt (Part No.33050)

Yukon Gear – Dura Grip Positraction For 10.5" GM 14 Bolt Truck, 4.10 & Down (Part No.26030)

Yukon Gear – Yoke For GM 10.5" 14 Bolt Truck, 1410, Strap Style (Part No.41180)

Yukon Gear – Standard Open Spider Gear Kit For GM 10.5" And 14T With 30 Spline Axles (Part No.16044)

Pro-King – Differential Internal Nest Kit (Part No.742J717)

Yukon Gear – Mini Spool For GM 10.5" 14 Bolt Truck (Part No.32301)

Motive Gear – Differential Pinion Nut (Part No.15994582)

Yukon Gear – The Carrier Bearing Puller (Part No.56034)

Yukon Gear – Pinion Seal For GM 14T (Part No.30023)

Powertrax – No-Slip Traction System (Part No.9207053000)

Motive Gear – Differential Crush Sleeve (Part No.3977355)

Yukon Gear – Bearing Race Driver (Part No.56020)

Motive Gear – Differential Pinion Shim Kit (Part No.GM14SK)

Yukon Gear – Pinion Install Kit For ’88 And Older 10.5" GM 14 Bolt Truck Differential (Part No.13058)

Motive Gear – Differential Bearing Kit – Koyo (Part No.R12R)

Yukon Gear – Chrome Cover For 10.5" GM 14 Bolt Truck (Part No.32013)

Motive Gear – Differential Gear Install Kit (Part No.GM12IK)

National – Bearings (Part No.M802048)

Yukon Gear – Minor Install Kit For ’87 & Down 10.5" GM 14 Bolt Truck Differential (Part No.12045)

Felpro – Differential Cover Gasket (Part No.RDS 55063)

Yukon Gear – 14T Side Gear Thrust Washer (Part No.33383)

Yukon Gear – 14T Pinion Gear Thrust Washer (Part No.33384)

Dorman – Help – Differential Shaft Lock Bolt (Part No.81048)

Yukon Gear – Standard Open Cross Pin Shaft For Four Pinion Design For GM 10.5" 14 Bolt Truck (Part No.33405)

Popular 1978 GMC C25 Differentials Categories