1978 GMC C25 Drivetrains

Essential 1978 GMC C25 Drivetrains

Yukon Gear – Full-Floating Axle Seal For GM 14T (Part No.30018)

Full-Floating Axle Seal For GM 14T

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$13.99
Full-floating axle seal for GM 14T.Yukon Mighty seal.

Product Features:
  • Rear axle seal
  • Fits GM 10.5″ 14 bolt truck
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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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$526.99
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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Pro-King – Differential Cover Gasket (Part No.743B303)

Differential Cover Gasket

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$3.49
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.
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Pro-King – Differential Internal Nest Kit (Part No.742J717)

Differential Internal Nest Kit

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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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Powertrax – Grip LS Traction System (Part No.LS231230)

Grip LS Traction System

from

$480.99
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!
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Yukon Gear – Adapter Sleeve Fro GM 11.5" & 10.5" 14 Bolt Truck Yokes To Use Triple Lip Pinion Seal (Part No.41209)

Adapter Sleeve Fro GM 11.5" & 10.5" 14 Bolt Truck Yokes To Use Triple Lip Pinion Seal

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$29.99
Product Features:
  • Adapter sleeve
  • Fits GM 10.5″ 14 bolt truck and GM 11.5″
  • Converts to triple lip seal
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Motive Gear – Differential Crush Sleeve (Part No.3977355)

Differential Crush Sleeve

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$11.99


Product Features:
  • CRUSH SLEEVE 14 BOLT 10.5 3116
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Yukon Gear – The Carrier Bearing Puller (Part No.56072)

The Carrier Bearing Puller

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$883.99
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 one ton applications including 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
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Yukon Gear – Bearing Race Driver (Part No.56019)

Bearing Race Driver

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$192.99
Bearing race driver. No return.

Product Features:
  • Bearing race driver
  • Fits LM104911 race
  • All steel construction
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Yukon Gear – AxleHubBolt (Part No.33583)

AxleHubBolt

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$5.99
AxleHubBolt

Spicer – Universal Joint (Part No.5-1350X)

Universal Joint

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$44.99
You expect a lot from your vehicle, and Spicer Life Series (SPL) universal joints deliver. SPL universal joints consistently outperform competitors, so you can hit the road or trail with confidence. Check out the difference that SPL universal joints can make in your vehicle, and make sure you’re getting the longer life, increased bearing capacity and lower maintenance costs that Spicer Life Series (SPL) can provide.
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Yukon Gear – Pinion Seal For GM 14T (Part No.30023)

Pinion Seal For GM 14T

from

$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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Dorman – Help – Axle Shaft Lock Assortment (Part No.81050)

Axle Shaft Lock Assortment

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$6.49
This drive axle shaft lock C-clip 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 drive axle shaft lock C-clip matches the fit and function of the factory part on specified years, makes and models
  • Ideal solution – this clip 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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Driveworks – Wheel Bearing (Part No.S-R1581-TV)

Wheel Bearing

from

$27.99
Product Features:
  • Brand may vary by location
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USA Standard Gear – Ring & Pinion "Thick" Gear Set For 10.5" GM 14 Bolt Truck In A 5.38 Ratio (Part No.36188)

Ring & Pinion "Thick" Gear Set For 10.5" GM 14 Bolt Truck In A 5.38 Ratio

from

$428.99
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 10.5″ GM 14 bolt truck
  • 10.50″ ring gear diameter
  • 30 spline pinion
  • 12 ring gear bolts
  • 5.38 ratio
  • Thick gear for 4.10 and down carrier
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Pro-King – Rear Axle Shaft Kit (Part No.AXK-183)

Rear Axle Shaft Kit

from

$169.99
Pro-King is the leading supplier of transmission and driveline products in the aftermarket. All products are designed to meet or exceed OE quality, form, fit and funtion.

Product Features:
  • High strength steel
  • Dual heat treating process
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Motive Gear – Differential Super Bearing Kit – Koyo (Part No.R12RSK)

Differential Super Bearing Kit - Koyo

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$137.99


Product Features:
  • SUPER KIT – GM 12 BOLT(TRUCK)
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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!
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    Driveworks – Universal Joint (Part No.DW-534G)

    Universal Joint

    from

    $20.29
    DRIVEWORKS Universal Joints are designed to meet or exceed OE fit, form, and function. These universal joints are set to provide superior quality and easy installation. DRIVEWORKS Universal Joints are constructed from quality materials for extended durability. DRIVEWORKS Universal Joints are pre-lubricated with premium grease to provide a longer service life. The grease fittings are pre-installed to allow for easy maintenance (where applicable).

    Product Features:
    • The cross is hot forged for the higher torque and horsepower
    • The bearing cups are made by cold forging to provide higher strength and better rigidity
    • Bearig cups allow 360 lubricant distribution to bearing surfaces, and are precision-ground for maximum load-carrying capabilities
    • Lubrication grooves are designed to ensure grease penetration to entire journal and needle bearings
    • Grease fitting allows for easy maintenance and the flexible use of the entire assembly
    • Snap rings are held to strict tolerances to ensure proper cup position and retention
    • Nitrile rubber seals are applied to optimize grease retention and reduce contamination
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    Yukon Gear – Steel Cover For GM 10.5" 14 Bolt Truck (Part No.32345)

    Steel Cover For GM 10.5" 14 Bolt Truck

    from

    $83.99
    Product Features:
    • Fits GM 10.5″ 14 bolt truck
    • Steel
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    Yukon Gear – Spindle Nut Washer For GM 10.5" 14 Bolt Truck, 2.160" I.D., 1 Tab (Part No.33511)

    Spindle Nut Washer For GM 10.5" 14 Bolt Truck, 2.160" I.D., 1 Tab

    from

    $31.99
    Product Features:
    • Spindle nut washer
    • Fits GM 10.5″ 14 bolt truck
    • 1 tab
    • 2.160″ I.D.
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    Driveworks – Manual Transmission Input Shaft Seal (Part No.S-481181-N)

    Manual Transmission Input Shaft Seal

    from

    $8.49
    Product Features:
    • Brand may vary by location
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    National – Bearings (Part No.382A)

    Bearings

    from

    $16.99
    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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    Motive Gear – Differential Gear Install Kit (Part No.GM12IK)

    Differential Gear Install Kit

    from

    $69.99


    Product Features:
    • MINI INSTALL KIT GM 12BLT 8.875 TRUCK
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    Yukon Gear – DiffrlPinSupportBolt (Part No.33582)

    DiffrlPinSupportBolt

    from

    $5.99
    DiffrlPinSupportBolt

    National – Bearings (Part No.208-LO)

    Bearings

    from

    $49.49
    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
    • 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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    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

    from

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

    Pinion Install Kit For '88 And Older 10.5" GM 14 Bolt Truck Differential

    from

    $362.99
    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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    Popular 1978 GMC C25 Drivetrains Categories

    1978 GMC C25 Drivetrains

    You count on your 1978 GMC C25 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 203 Drivetrains ranging in price from $0.91 to $1,134.99, you’re sure to find everything you need for your 1978 GMC C25.

    Brands matter. If you want to shop a specific Drivetrains brand, we stock 17 different brands like Moog, DriveWorks, and Spicer. 1978 GMC C25 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 4,164 extensive product reviews on 1978 GMC C25 Drivetrains. Some of the top-rated Drivetrains products we carry are Greaseable Super Strength Universal Joint with 4.6 stars and Greaseable Premium Universal Joint with 4.0 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 GMC C25 below to get started!

    Top-Rated Drivetrains Brands For Your 1978 GMC C25

    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 GMC C25 running right for years to come. In our inventory you’ll find brands like Moog, DriveWorks, Spicer, and even more.

    Popular Mr. Gasket Drivetrains

    You’ll find popular Mr. Gasket brand products across Differentials. All are waiting to get your 1978 GMC C25 back on the road. Some of the top-rated Mr. Gasket products in these categories are:
    Differential Gasket
    from $15.99
    (1)
    Differential Gasket
    Rear Differential Cover Gaskets

    FAQs for 1978 GMC C25 Drivetrains

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

    Out of 203 Drivetrains for the 1978 GMC C25, the most popular in our inventory are:
    Universal Joint
    from $20.29
    (52)
    Universal Joint
    U-Joints
    Greaseable Super Strength Universal Joint
    from $36.99
    (41)
    Greaseable Super Strength Universal Joint
    U-Joints
    Universal Joint
    from $20.49
    (33)
    Universal Joint
    U-Joints

    What are the top-rated 1978 GMC C25 Drivetrains?

    Top-rated Drivetrains for your 1978 GMC C25 based on customer reviews/ratings are:
    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”
    Greaseable Premium Universal Joint
    from $19.99
    (31)
    Greaseable Premium Universal Joint
    “Good”
    Non-Greaseable Super Strength Universal Joint
    from $32.99
    (28)
    Non-Greaseable Super Strength Universal Joint
    “installed as needed”