1977 GMC G25 Differentials

Name: Notched Cross Pin Shaft for 12P and 12T GM
Brand: Yukon Gear
SKU: 33429
Price: 51.99 USD

Please Select your Vehicle to See Exact Fit Parts

Keep Your 1977 GMC G25 in Top Shape with Quality Differentials

Whether you’re repairing or upgrading your Differential, using high-quality parts is key to keeping your 1977 GMC G25 looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Differential Covers, Rear Differential Cover Gaskets, and Differential Oil. Whether you’re replacing a damaged part or enhancing your truck’s style and protection, you’ll find exactly what you need to get the job done right.

Top-Rated Differentials from Trusted Brands

Looking for a reliable Differential? We’ve got you covered with options from brands you know and trust like National, Motive Gear, and Felpro. For example, National Differentials start at just $11.99 with an average 4.3 star rating. Motive Gear and Felpro offer similar pricing and quality, backed by strong customer feedback. With over 4,212 reviews and a solid 4 star average, you can shop with confidence knowing other GMC G25 owners approve.

Competitive Prices and Extensive Inventory

The average price for a 1977 GMC G25 Differential at Advance Auto Parts is around $208.01, with a range that starts at $2.59 and goes up to $1,969.99. With 196 options in stock from 16 trusted brands, finding the right fit is easy. Popular picks like Axle Housing Cover Gasket Oval Shaped 10 Bolt Hole Gasket, Multi-Purpose Bearing, and 3 Qt – 80W90 Conventional Gear Oil with Posi Additive start at just $10.99 and offer a great balance of form and function.

Explore Related Parts

While you’re upgrading or replacing your Differential, don’t forget to check out other key components like Drive Shafts and Axles and Universal Joints. At Advance Auto Parts, we’re here to help you keep your 1977 GMC G25 in peak condition, inside and out.

Looking for the perfect Differential for your 1977 GMC G25? You’re in the right place. Below, you’ll find links to various types of Differentials that fit your vehicle. At Advance Auto Parts, we offer only the highest quality OEM and aftermarket Differentials, ensuring durability and a precise fit for your GMC G25. Whether you’re driving a 1977 model or another popular model year like 1968, 1975, 1976, and 1978, we’ve got you covered. Purchasing Differentials from Advance Auto Parts is a smart choice, giving you access to trusted brands and parts built to perform. Below, you’ll find links to various types of Differentials that fit your vehicle.

Essential 1977 GMC G25 Differentials

from

$51.99

Yukon Gear & Axle manufactures a full line of top quality small parts to complete any job including ring gear bolts, crush sleeves, pinion nuts and washers, axle studs, thrust washers and much, much more. For all your differential small parts needs, look no further than Yukon.

Product Features:

Cross pin shaft
Fits GM 12 bolt passenger car and truck
Notched
Not compatible with Spartan Lockers or Lock Rights

from

$11.99

Value-priced bearing meets all cataloged application requirements.

Product Features:

Brand may vary by location

from

$234.99

Yukon Gear & Axle offers an extensive line of general replacement and high-performance axles for passenger car, truck and SUV applications. High quality alloys and the latest in heat-treating technologies provide a stronger-than-stock axle for off-road, on the street, or at the track.

Product Features:

28 spline
5 lug
33 7/16″ long
Fits GM 8.5″ in 1975-1988 GM van

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$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

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$242.99

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

from

$360.99

RngPnn

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$709.99

Differential

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$15.99

Side gear thrust washer
Fits GM 8.5″

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$14.99

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:

Design type: spring loaded; multi-lip
Temperature range: -20 Deg. F to 300 Deg. F / -29 Deg. C to 49 Deg. C
Resistance to EP lubricants
Low swell in hydrocarbon fluids
Delivers quality and reliable performance for every type of repair

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$7.99

Product Features:

Brand may vary by location

from

$13.99

Value-priced bearing meets all cataloged application requirements.

Product Features:

Brand may vary by location

from

$207.99

Yukon Gear & Axle spider gear kits feature higher quality materials and better manufacturing techniques than OEM to ensure a longer lasting spider gear set. Kit delivers everything needed for a complete and proper spider gear set replacement.

Product Features:

Spider gear kit
Fits GM 12 bolt passenger car and truck 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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$148.99

Redline Heavy Shockproof Gear Oil is formulated to provide lasting protection. This kit includes four quarts of oil and a bottle of Yukon Limited Slip Friction modifier that reduces noise and chatter in clutch driven positraction units and limited slip differentials.

Product Features:

Includes four quarts of Redline Shockproof oil and one 4oz bottle of Yukon positraction additive

from

$11.99

Crush sleeve for GM 12 bolt truck
2.350″ tall

from

$109.99

Yukon Mighty Seals use the latest design and manufacturing technologies to produce a precision fit that seals tight and lasts for years to come.

Product Features:

Pinion Redi-sleeve
Fits GM 12 bolt passenger car, 12 bolt truck and 1963-1979 Corvette

from

$39.99

Yukon shim kits are precision machined and tailored for each individual application to ensure you have the right shims for every set up.

Product Features:

Pinion depth shim kit for Toyota 7.5″, 8″ and V6

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$98.99

Product Features:

MINI SPOOL GM 10 BOLT 8 1/2″ 28 SPLINE

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$64.99

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 limited 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.

from

$312.99

Product Features:

DANA-60 R/P 4.10 STD MG (USES PRE-LOAD SHIMS)

from

$6.99

Pro-King is the leading supplier of transmission and driveline products in the aftermarket.

Product Features:

Meets or exceeds OE specifications

from

$4.99

3/8″ ring gear bolt washer for GM 12 bolt car & truck, 8.2 BOP & more.

Product Features:

Ring gear bolt washer for GM 12 bolt car and truck, 1955-1964 passenger car, 1963-1979 Corvette and 8.2″ Buick, Oldsmobile and Pontiac

from

$41.99

Yukon Gear & Axle manufactures a full line of top-quality small parts to complete any job including ring gear bolts, crush sleeves, pinion nuts and washers, axle studs, thrust washers, and other general maintenance items. You can count on Yukon to fulfill all your differential small parts needs.

Product Features:

Shim kit
Fits Ford 8.8″, 1963-1979 Corvette, GM 12 bolt passenger car and truck, 8.2″, 8.5″ and 8.6″ Dura Grip positraction

from

$649.99

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 GM 18.5″ with 28 spline axles
Made from 9310 steel for added strength
Replaces the spiders in a standard carrier case

from

$2.99

Pro-King is the leading supplier of transmission and driveline products in the aftermarket.

Product Features:

Meets or exceeds OE specifications

from

$8.99

Clutch guide for Chrysler 9.25″, Dana Spicer 44, Dana Spicer 50, Ford 8.8″, GM 12 bolt passenger car, GM 8.2″, 8.5″ and 8.6″, 1963-1979 Corvette and Nissan Titan
Compatible with Dura Grip positractions only

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$7.99

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 on and off-road, check out Motive Gear. Motive Gear products can be found in the winner’s circle at racing events worldwide. The superior quality of Motive Gear components is the result of years of racing development, outstanding design and state-of-the-art manufacturing methods. Extensive testing is performed on all products by our in-house engineers.

from

$9.99

Product Features:

Choosing Victor Reinz assures getting OE quality parts in gaskets sets that have the coverage, contents, packaging and electronic cataloging to best meet the needs of the aftermarket.
Dana engineering-approved for fit, form and function
Meets or exceeds OE specifications

from

$14.99

Pinion nut washer for GM 7.2″ IFS, 7.5″, 7.625″, 7.6″ IFS, 8.5″, 8.6″ and 9.5″.

Popular 1977 GMC G25 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 Cover Bolts

Differential Carriers

Differential Bearing Kits

Front Differential Pinion Bearings

Differential Spider Gear Kits

Differential Rebuild Kits

Differential Carrier Shim Kits

Differential Pinion Seals

Differential Cover Plugs

Differential Clutch Packs

Differential Mini Spools

Differential Ring and Pinions

Differential End Yokes

Differential Pinion Supports

Differential Lock Assemblies

Differential Spools

Differential Carrier Bearings

Rear Housing Cover Gaskets

Complete Differentials

Differential Ring Gear Bolts

Bearing Race Drivers

Differential Pinion Shafts

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 Pinion Gear Washers

Differential Ring and Pinion Kits

Differential Carrier Bearing Races

Differential Lock Washers

Differential Clutch Pack Clips

Differential Carrier Bearing Set

Best-Selling 1977 GMC G25 Rear Differential Cover Gaskets

Upgrade your G25 with one of our 5 best-selling Rear Differential Cover Gaskets, earning an average 4.83 stars rating across 199 reviews.

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$9.49

Fel-Pro® gaskets are specifically designed for the repair environment to deliver a reliable seal on even the most troublesome applications. Designed for imperfect sealing surfaces and manufactured with proprietary materials, you can count on Fel-Pro for innovative sealing solutions for the real-world repair environment.

Product Features:

Meets or exceeds all original equipment specifications
Application specific design to ensure a perfect fit
Engineered for the sealing repair environment
Validated for fit, form and function
Unsurpassed quality you can trust

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$21.49

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

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$10.99

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

from

$31.49

Pro-King is the leading supplier of transmission and driveline products in the aftermarket.

Product Features:

Meets or exceeds OE specifications

from

$12.99

12T cover gasket.

Product Features:

Cover gasket
Fits GM 12 bolt truck

Top-Quality Differential Oil for 1977 GMC G25s

Choose a high-quality OEM or aftermarket Differential Oil for GMC G25s and enjoy top-notch performance from $12.49.

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from

$12.49

Valvoline Full Synthetic MaxLife Multi-Vehicle ATF, the No. 1 ATF product, suitable for use in 95% of vehicles. And now, it’s recommended for most belt & chain-driven continuously variable transmissions (CVT). Featuring advanced additives to prevent the major causes of transmission breakdown, it’s designed to help prevent leaks, reduce wear & tear, and maximize performance. Has improved thermal stability for longer fluid life, better viscosity stability for consistent transmission operation, and frictional enhancements for smooth gear engagements. Valv MaxLife Multi-Vehicle ATF is suitable for most Ford, GM, Toyota, Honda, Nissan, Hyundai, Subaru, BMW, Mercedes, Volvo, VW & Audi vehicles. Recommended for use in: GM DEXRON-II, DEXRON-III, DEXRON-VI, and DEX-CVT; Ford MERCON LV; Toyota/Lexus Type T, T-II, T-IV, WS, CVTF FE, and CVTF TC; Honda/Acura ATF-Z1 and Honda CVT; Nissan/Infiniti Matic-D, Matic-J, Matic-K and Matic-S; Hyundai/Kia SP-II, SP-III, SP-IV and SPH-IV; BMW 7045E, ETL 8072B, LA2634 and LT71141; Allison C-4; Mercedes-Benz NAG-1; Volvo 1161521, 1161540, 97340 and 1273.41; Subaru ATF HP, Lineartronic chain CVT and CVT-II, Lineartronic High Torque CVT, and CV-30; and VW/Audi G-052-025-A2 and G-052-162-A1. CURRENTLY UNABLE TO SHIP THIS PRODUCT TO CUSTOMERS LOCATED IN CALIFORNIA

Product Features:

FOR USE IN 95% OF VEHICLES INCLUDING MOST CVTs in operation with US registered light duty applications
HIGH PERFORMANCE CONDITIONING AGENTS prolong seal elasticity to prevent leaks
IMPROVED DURABILITY & TRANSMISSION LIFE with anti-wear technology to avoid costly repairs
ENHANCED HIGH & LOW TEMP PERFORMANCE supports transmission fluid in all weather situations

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$57.99

Union 76 gear oil is a conventional non-synthetic 80W90 formulation designed for all types of differentials. This kit includes three quarts of oil and a bottle of Yukon Limited Slip Friction modifier that reduces noise and chatter in clutch driven positraction units and limited slip differentials.

Product Features:

Includes three quarts of conventional oil and one 4oz bottle of Yukon positraction additive

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$44.99

Union 76 gear oil is a conventional non-synthetic 80W90 formulation designed for all types of differentials.

Product Features:

Includes three quarts of conventional oil

from

$148.99

Includes four quarts of Redline Shockproof oil and one 4oz bottle of Yukon positraction additive

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$99.99

Redline Heavy Shockproof Gear Oil is formulated to provide lasting protection.

Product Features:

Includes three quarts of Redline Shockproof oil

from

$137.99

Redline Heavy Shockproof Gear Oil is formulated to provide lasting protection.

Product Features:

Includes four quarts of Redline Shockproof oil

Top Picks for 1977 GMC G25 Differential Bearings

Invest in one of our 12 durable Differential Bearings for your 1977 GMC, knowing you’re getting trusted brands and expert craftsmanship.

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from

$16.99

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

Product Features:

CONSISTENT PERFORMANCE — Matched cup and cone components ensure consistent performance
PREMIUM MATERIALS — Precision manufactured using premium-grade steel for outstanding durability and performance
SMOOTH ROTATION — Crowned raceways and rollers for even load distribution
OE-STYLE DESIGN — Engineered to meet OE specifications
COMPREHENSIVE COVERAGE — Industry-leading coverage for domestic and import applications
RIGOROUS TESTING — Comprehensive testing throughout design and development processes by National engineers for quality you can count on

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$11.99

Manufactured with premium-grade steel, National taper bearing cups feature crowned raceways to ensure even load distribution.

Product Features:

PREMIUM MATERIALS – Precision manufactured using premium-grade steel for outstanding durability and performance
SMOOTH ROTATION – Crowned raceways for even load distribution
OE-STYLE DESIGN – Engineered to meet OE specifications
COMPREHENSIVE COVERAGE – Industry-leading coverage for domestic and import applications
RIGOROUS TESTING – Comprehensive testing throughout design and development processes by National engineers for quality you can count on

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$27.99

Manufactured with premium-grade steel, National taper bearing sets feature crowned raceways and rollers to ensure even load distribution.

Product Features:

CONSISTENT PERFORMANCE: Matched cup and cone components ensure consistent performance
PREMIUM MATERIALS: Precision manufactured using premium-grade steel for outstanding durability and performance
SMOOTH ROTATION: Crowned raceways and rollers for even load distribution
OE-STYLE DESIGN: Engineered to meet OE specifications
COMPREHENSIVE COVERAGE: Industry-leading coverage for domestic and import applications
RIGOROUS TESTING: Comprehensive testing throughout design and development processes by National engineers for quality you can count on

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$21.99

Manufactured with premium-grade steel, National taper bearing cones feature crowned raceways and rollers to ensure even load distribution.

Product Features:

PREMIUM MATERIALS – Precision manufactured using premium-grade steel for outstanding durability and performance
SMOOTH ROTATION – Crowned raceways and rollers for even load distribution
OE-STYLE DESIGN – Engineered to meet OE specifications
COMPREHENSIVE COVERAGE – Industry-leading coverage for domestic and import applications
RIGOROUS TESTING – Comprehensive testing throughout design and development processes by National engineers for quality you can count on

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$28.99

Cross pin bolt for GM 12 bolt passenger car and truck
For OEM positraction applications only

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$18.99

With advanced load-carrying capacity and compact design, tapered roller bearings are used in wheel bearings, transmissions, differentials, transfer cases and other miscellanous applications. FAG manufacturers over 100 million tapered roller bearings annually.

Product Features:

High-precision and High-quality components used in all KITs
Coverage of classic and new high-tech solutions for the best system coverage

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$17.99

High-precision and High-quality components used in all KITs
Coverage of classic and new high-tech solutions for the best system coverage

from

$14.99

High-precision and High-quality components used in all KITs
Coverage of classic and new high-tech solutions for the best system coverage

from

$11.99

High-precision and High-quality components used in all KITs
Coverage of classic and new high-tech solutions for the best system coverage

from

$10.99

High-precision and High-quality components used in all KITs
Coverage of classic and new high-tech solutions for the best system coverage

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$6.99

Cross pin bolt for Chrysler 8.25″ and 9.25″ rear, Ford 7.5″ and 8.8″, GM 12 bolt car and truck, 8.5″, 8.25″ IFS, 8.0″, 7.625″, 7.5″ and 7.2″ IFS

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$6.99

High-precision and High-quality components used in all KITs
Coverage of classic and new high-tech solutions for the best system coverage

Our Rear Housing Cover Gaskets for 1977 GMC G25s

Make a smart move for your 1977 GMC G25 with our Rear Housing Cover Gasket for $9.99.

show more show less

from

$9.99

Product Features:

Choosing Victor Reinz assures getting OE quality parts in gaskets sets that have the coverage, contents, packaging and electronic cataloging to best meet the needs of the aftermarket.
Dana engineering-approved for fit, form and function
Meets or exceeds OE specifications

Top-Rated Differential Brands For Your 1977 GMC G25

When it comes to finding the perfect Differential for your 1977 GMC G25, Advance Auto Parts has you covered with a wide selection of high-quality OEM and aftermarket options from 16 trusted brands. We carry the most popular Differential brands including Felpro, National, and Motive Gear, and more, all known for their exceptional customer ratings (average brand rating of 4.6 stars) and competitive prices, as low as $9.49. Purchasing a Differential from us here at Advance Auto Parts is a smart move for both you and your 1977 GMC G25, providing peace of mind with parts that meet or exceed OEM standards.

Popular Felpro 1977 GMC G25 Differentials

If you’re looking for a top-quality Differential for your 1977 GMC G25, Advance Auto Parts has exactly what you need with our selection of Felpro Differentials. We have 2 Felpro Differentials in stock for this fitment, all known for their durability and precision fit. With prices starting at just $9.49 and an average cost of $10.24, you’ll find the perfect Differential for your needs and budget. Felpro Differentials for the 1977 GMC G25 come highly rated, with over 198 customer reviews and an impressive average rating of 4.6 stars. Choosing a Felpro Differential from Advance Auto Parts is a smart move to ensure quality and value for your vehicle.

from $9.49

(3)

Axle Housing Cover Gasket Irregular Shaped 12 Bolt Hole Gasket

“felpro gaskets are great”

from $10.99

(195)

Axle Housing Cover Gasket Oval Shaped 10 Bolt Hole Gasket

“Worked as described”

Top-Quality National 1977 GMC G25 Differentials

For those in search of a high-quality Differential for their 1977 GMC G25, Advance Auto Parts offers a great selection of National Differentials. With 3 National Differentials in stock, you can trust you’re getting top-tier parts designed for durability and a perfect fit. Prices for these Differentials start at just $11.99, with an average price of $14.66, giving you a range of options to suit your budget. Backed by over 29 customer ratings and an average rating of 4.3 stars, National Differentials provide both reliability and excellent performance. Choosing a National Differential from Advance Auto Parts is a smart investment in your vehicle’s performance and longevity.

from $14.99

(2)

Multi-Purpose Seal

“Front seal. Old one was leaking”

from $11.99

(2)

Bearing Race

“Reasonable price and woks well. front diff 2006 Escalade esv”

from $16.99

(25)

Multi-Purpose Bearing

“Smooth”

FAQs for 1977 GMC G25 Differentials

What are the best-selling Differentials for 1977 GMC G25s?

Out of 196 Differentials that fit 1977 GMC G25s, the following parts are the top sellers:

Axle Housing Cover Gasket Oval Shaped 10 Bolt Hole Gasket (5185823) – $10.99
Multi-Purpose Bearing (3275973) – $16.99
3 Qt – 80W90 Conventional Gear Oil with Posi Additive (11645418) – $57.99

What’s the price range for 1977 GMC G25 Differentials?

The prices of Differentials for the 1977 GMC G25 range from $2.59 up to $1,969.99 for the most premium parts.

What is the average price of a Differential for a 1977 GMC G25?

The average price for Differentials for the 1977 GMC G25 is $208.01. Keep in mind the variety of part types within our Differential category, where you are likely to find a wide range of prices across a variety of parts and components.

Does Advance Auto Parts sell Differentials for other GMC G25 model years?

Yes, we carry Differentials for 3 model years of GMC G25s between 1968 and 1978. The following model years are the most popular for Differential purchases: 1978, 1976, 1975, and 1968.

What are the cheapest Differentials for my 1977 GMC G25?

The cheapest 1977 GMC G25 Differentials we carry are:

Differential Pinion Gear Washer (10282533) – $2.59
Differential Ring Gear Bolt (10282159) – $2.99
Differential Cross Shaft (10282201) – $2.99
Differential Cover Bolt (50333283) – $2.99
Differential Crush Sleeve (10282146) – $2.99

Does Advance Auto Parts sell Differentials for any other 1977 GMC models?

Yes. We stock Differentials for 13 other popular 1977 GMC models. Some of the most popular are 1977 Jimmy Differentials, 1977 K25 Differentials, 1977 K15 Differentials, 1977 C25 Differentials, and 1977 C15 Differentials.

What types of Differentials do you sell for my 1977 GMC G25?

As of 6/2/26, these are some of the most in-demand types of Differentials for a 1977 GMC G25:

Can I get help with 1977 GMC G25 Differential orders?

Contact our customer support team by chat or phone, through the help desk page, where you can find instant answers about GMC Differentials and more.

What is your return policy for GMC G25 Differentials?

Advance Auto Parts keeps returns simple. For new GMC G25 Differentials and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.

1977 GMC G25 Differentials

Yukon Gear – Notched Cross Pin Shaft for 12P and 12T GM (Part No.33429)

Driveworks – Taper Bearing Cone (Part No.S-LM-104949)

Yukon Gear – 1541H Alloy 5 Lug Rear Axle for 8.5" GM 2WD Van (Part No.21255)

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)

Dorman – Differential Pinion Yoke Assembly (Part No.697-553)

Richmond Gear – RngPnn (Part No.69-0302-1)

Yukon Gear – Differential (Part No.26052)

Yukon Gear – Standard Open Side Gear Thrust Washer for 8.5" GM (Part No.33304)

National – Multi-Purpose Seal (Part No.8460N)

Driveworks – Tapered Roller Bearing (Part No.S-LM-603012)

Driveworks – Taper Bearing Set (Part No.S-A-38)

Yukon Gear – Standard Open Spider Gear Kit, GM 12 Bolt Car and Truck with 30 Spline Axles (Part No.16043)

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

Yukon Gear – GM 12 Bolt Truck Crush Sleeve (Part No.33105)

Yukon Gear – 12P, 12T, CI Vet, & 55GM 8460N Redi Sleeve Yoke Saver (Part No.30225)

Yukon Gear – Pinion Depth Shim Kit for Toyota8", GM 7.5", 8.2" & 12 Bolt Truck (Part No.55064)

Motive Gear – Differential Mini Spool (Part No.MS10-28)

Richmond Gear – Differential Pinion Shaft (Part No.80-0269-1)

Motive Gear – Differential Ring and Pinion (Part No.D60-410)

Pro-King – Differential Cover Plug (Part No.742G484)

Yukon Gear – 3/8" Ring Gear Bolt Washer For GM 12 Bolt Car & Truck, 8.2 Bop & More (Part No.33347)

Yukon Gear – Posi 12-Shim Kit, GM 8.2"/Gm 8.5"/12T/12P/Ford 8.8"/Cast Iron Vette (Part No.16042)

USA Standard Gear – Spartan Locker For GM 8.5" With 28 Spline Axles, Includes Heavy-Duty Cross Pin Shaft (Part No.17040)

Pro-King – Differential Ring Gear Bolt (Part No.742G935)

Yukon Gear – Ltd. Slip Clutch Guide, Chry 9.25/Dana 44/50/GM 12 Bolt/8.2"/8.5"/8.6"/Nis M226 (Part No.33352)

Motive Gear – Differential Pinion Nut (Part No.3752901)

Victor Reinz – Axle Housing Cover Gasket (Part No.71-14826-00)

Yukon Gear – Pinion Nut washer (Part No.33167)

Yukon Gear – Chrome Cover for GM 12 Bolt Truck (Part No.32012)

Yukon Gear – Polished Aluminum Cover for GM 12 Bolt Truck (Part No.32027)

Felpro – Axle Housing Cover Gasket Irregular Shaped 12 Bolt Hole Gasket (Part No.RDS 13391)

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

Felpro – Axle Housing Cover Gasket Oval Shaped 10 Bolt Hole Gasket (Part No.RDS 55028-1)

Pro-King – Differential Cover Gasket (Part No.742G303A)

Yukon Gear – GM 12 Bolt Truck Cover Gasket (Part No.23015)

Valvoline – MaxLife Multi-Vehicle (ATF) Full Synthetic Automatic Transmission Fluid, 1 Quart (Part No.VV324)

Yukon Gear – 3 Qt – 80W90 Conventional Gear Oil with Posi Additive (Part No.15003)

Yukon Gear – 3 Qt – Penzoil 80W90 Conventional Gear Oil (Part No.15002)

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

Yukon Gear – Redline Synthetic "Shock Proof" Oil – 3 Quarts (Part No.15000)

Yukon Gear – Redline Synthetic "Shock Proof" Oil – 4 Quarts (Part No.15004)

National – Multi-Purpose Bearing (Part No.A-6)

National – Bearing Race (Part No.LM501314)

National – Multi-Purpose Bearing (Part No.A-36)

National – Tapered Roller Bearing Cone (Part No.LM501349)

Yukon Gear – Positraction Cross Pin Bolt for GM 12 Bolt Car and Truck (Part No.33344)

Schaeffler – Cup (Part No.382A)

Schaeffler – Wheel Balancer Cone (Part No.KLM104949)

Schaeffler – Bearing – TRB (Tapered Roller Bearing) (Part No.KT5)

Schaeffler – Cup (Part No.LM104911)

Schaeffler – Cup (Part No.M88010)

Yukon Gear – Cross Pin Bolt (Part No.33067)

Schaeffler – Cup (Part No.LM48510)

Victor Reinz – Axle Housing Cover Gasket (Part No.71-14826-00)