1977 Buick Opel Differentials

Keep Your 1977 Buick Opel in Top Shape with Quality Differentials

Whether you’re repairing or upgrading your Differential, using high-quality parts is key to keeping your 1977 Buick Opel looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Differential Ring and Pinions, Differential Oil, and Differential Bearings. 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 Valvoline. For example, Valvoline Differentials start at just $14.49 with an average 4.8 star rating. With over 6 reviews and a solid 3 star average, you can shop with confidence knowing other Buick Opel owners approve.

Competitive Prices and Extensive Inventory

The average price for a 1977 Buick Opel Differential at Advance Auto Parts is around $173.57, with a range that starts at $2.99 and goes up to $379.99. With 21 options in stock from 4 trusted brands, finding the right fit is easy. Popular picks like Ring Gear Bolt, Pinion Nut, and Pinion Seal start at just $2.99 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 Transfer Cases. At Advance Auto Parts, we’re here to help you keep your 1977 Buick Opel in peak condition, inside and out.

Essential 1977 Buick Opel Differentials

FAG US – Bearing – TRB (Tapered Roller Bearing) (Part No.KT5)

Bearing - TRB (Tapered Roller Bearing)

from

$21.29
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
See More

FAG US – Cup (Part No.LM67010)

Cup

from

$6.69
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
See More

Motive Gear – Pinion Nut (Part No.1260823)

Pinion Nut

from

$8.49
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.
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Richmond Gear – Differential Cross Shaft (Part No.CSPGM75)

Differential Cross Shaft

from

$26.49
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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Motive Gear – Ring Gear Bolt (Part No.14066913)

Ring Gear Bolt

from

$2.99


Product Features:
  • RING GEAR BOLT 8.5″ 7.5″ 7/16 X 20 LEFT HAND
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Motive Gear – Differential Pinion Shim Kit (Part No.1104)

Differential Pinion Shim Kit

from

$12.99


Product Features:
  • KIT SHIM
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Motive Gear – Differential Gear Install Kit (Part No.GM7.5IK)

Differential Gear Install Kit

from

$49.99


Product Features:
  • MINI INSTALL KIT GM 7.5
See More

Motive Gear – Pinion Seal (Part No.8610)

Pinion Seal

from

$4.99
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.
See More

Valvoline – DEXRON – VI ATF Full Synthetic Automatic Transmission Fluid, 1 Quart (Part No.822405)

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

from

$14.49
Valvoline DEXRON-VI/MERCON LV ATF is a full-synthetic transmission fluid formulated with advanced additive technology to meet and exceed the requirements of the General Motors DEXRON-VI specification. It is officially licensed and approved by GM and is fully back-serviceable and can be used wherever DEXRON-II and/or DEXRON-III are recommended. Recommended for use in the following applications: DEXRON-VI, DEXRON-III, DEXRON-II, and Allison C-4.

Product Features:
  • Formulated with full-synthetic base stocks and advanced additive technology to meet the challenging demands of automatic transmissions
  • Enhanced anti-shudder protection for smooth shifting and maximum power transfer
  • Developed with anti-wear technology to help improve transmission durability
  • Engineered with a proprietary blend of base oils and advanced additives to provide better oil flow at low temperatures and greater film protection at higher temperatures
See More

Motive Gear – Differential Ring and Pinion (Part No.GM7.5-456)

Differential Ring and Pinion

from

$216.99


Product Features:
  • GM 10BL 7.5&7.625 R/P 4.56 MG
See More

Richmond Gear – RngPnn (Part No.49-0007-1)

RngPnn

from

$360.99
RngPnn

Motive Gear – Performance Differential Ring and Pinion (Part No.G875373X)

Performance Differential Ring and Pinion

from

$230.99


Product Features:
  • GM 10BL 7.5 &7.625 R/P 3.73X* MGP THICK
See More

Richmond Gear – RngPnn (Part No.69-0322-1)

RngPnn

from

$350.99
RngPnn

Richmond Gear – RngPnn (Part No.49-0009-1)

RngPnn

from

$360.99
RngPnn

Motive Gear – Differential Ring and Pinion (Part No.GM7.5-342A)

Differential Ring and Pinion

from

$175.99
All Motive Gear products are engineered for their specific application and manufactured in state of the art facilities. All of our products undergo rigid quality control processes to insure proper fit, performance and longevity. Motive Gear products can be found in the winners circle at NHRA, IHRA, NMRA, NMCA, SODA, SCORE, BITD, Ultra-4 and NASCAR events because we offer unmatched selection and quality demanded by racers and their crew chiefs – the same quality and selection demanded by DIY customers and top mechanics. With four warehouses strategically located across North America, most Motive Gear orders arrive within 2-4 days. Win with Motive Gear!
See More

Motive Gear – Differential Ring and Pinion (Part No.GM7.5-308T)

Differential Ring and Pinion

from

$265.99
All Motive Gear products are engineered for their specific application and manufactured in state of the art facilities. All of our products undergo rigid quality control processes to insure proper fit, performance and longevity. Motive Gear products can be found in the winners circle at NHRA, IHRA, NMRA, NMCA, SODA, SCORE, BITD, Ultra-4 and NASCAR events because we offer unmatched selection and quality demanded by racers and their crew chiefs – the same quality and selection demanded by DIY customers and top mechanics. With four warehouses strategically located across North America, most Motive Gear orders arrive within 2-4 days. Win with Motive Gear!
See More

Motive Gear – Differential Ring and Pinion (Part No.GM7.5-373A)

Differential Ring and Pinion

from

$179.99


Product Features:
  • GM10 BL 7.5″ 3.73
See More

Richmond Gear – RngPnn (Part No.49-0044-1)

RngPnn

from

$379.99
RngPnn

Motive Gear – Performance Differential Ring and Pinion (Part No.G875342X)

Performance Differential Ring and Pinion

from

$236.99


Product Features:
  • GM 10BL 7.5 &7.625 R/P 3.42X* MGP
See More

Motive Gear – Performance Differential Ring and Pinion (Part No.G875342)

Performance Differential Ring and Pinion

from

$230.99


Product Features:
  • GM 10BL 7.5 &7.625 R/P 3.42 MGP 10 3/8 X 18 LH THRED BLTS, PD=1.438
See More

Motive Gear – Differential Ring and Pinion (Part No.GM7.5-410A)

Differential Ring and Pinion

from

$175.99


Product Features:
  • GM10 BL 7.5″ 4.10
See More

Richmond Gear – RngPnn (Part No.69-0324-1)

RngPnn

from

$350.99
RngPnn

Most Popular Differential Ring and Pinions for 1977 Buick Opels

Enhance your 1977 Buick Opel with one of the 13 Differential Ring and Pinions we have in stock, starting at just $175.99.

Motive Gear – Differential Ring and Pinion (Part No.GM7.5-373A)

Differential Ring and Pinion

from

$179.99


Product Features:
  • GM10 BL 7.5″ 3.73
See More

Motive Gear – Differential Ring and Pinion (Part No.GM7.5-456)

Differential Ring and Pinion

from

$216.99


Product Features:
  • GM 10BL 7.5&7.625 R/P 4.56 MG
See More

Motive Gear – Performance Differential Ring and Pinion (Part No.G875342X)

Performance Differential Ring and Pinion

from

$236.99


Product Features:
  • GM 10BL 7.5 &7.625 R/P 3.42X* MGP
See More

Richmond Gear – RngPnn (Part No.49-0044-1)

RngPnn

from

$379.99
RngPnn

Richmond Gear – RngPnn (Part No.49-0009-1)

RngPnn

from

$360.99
RngPnn

Richmond Gear – RngPnn (Part No.49-0007-1)

RngPnn

from

$360.99
RngPnn

Richmond Gear – RngPnn (Part No.69-0322-1)

RngPnn

from

$350.99
RngPnn

Richmond Gear – RngPnn (Part No.69-0324-1)

RngPnn

from

$350.99
RngPnn

Motive Gear – Differential Ring and Pinion (Part No.GM7.5-308T)

Differential Ring and Pinion

from

$265.99
All Motive Gear products are engineered for their specific application and manufactured in state of the art facilities. All of our products undergo rigid quality control processes to insure proper fit, performance and longevity. Motive Gear products can be found in the winners circle at NHRA, IHRA, NMRA, NMCA, SODA, SCORE, BITD, Ultra-4 and NASCAR events because we offer unmatched selection and quality demanded by racers and their crew chiefs – the same quality and selection demanded by DIY customers and top mechanics. With four warehouses strategically located across North America, most Motive Gear orders arrive within 2-4 days. Win with Motive Gear!
See More

Motive Gear – Performance Differential Ring and Pinion (Part No.G875342)

Performance Differential Ring and Pinion

from

$230.99


Product Features:
  • GM 10BL 7.5 &7.625 R/P 3.42 MGP 10 3/8 X 18 LH THRED BLTS, PD=1.438
See More

Motive Gear – Performance Differential Ring and Pinion (Part No.G875373X)

Performance Differential Ring and Pinion

from

$230.99


Product Features:
  • GM 10BL 7.5 &7.625 R/P 3.73X* MGP THICK
See More

Motive Gear – Differential Ring and Pinion (Part No.GM7.5-342A)

Differential Ring and Pinion

from

$175.99
All Motive Gear products are engineered for their specific application and manufactured in state of the art facilities. All of our products undergo rigid quality control processes to insure proper fit, performance and longevity. Motive Gear products can be found in the winners circle at NHRA, IHRA, NMRA, NMCA, SODA, SCORE, BITD, Ultra-4 and NASCAR events because we offer unmatched selection and quality demanded by racers and their crew chiefs – the same quality and selection demanded by DIY customers and top mechanics. With four warehouses strategically located across North America, most Motive Gear orders arrive within 2-4 days. Win with Motive Gear!
See More

Motive Gear – Differential Ring and Pinion (Part No.GM7.5-410A)

Differential Ring and Pinion

from

$175.99


Product Features:
  • GM10 BL 7.5″ 4.10
See More

Best-Selling 1977 Buick Opel Differential Oil

Upgrade your Opel with our best-selling Differential Oil with a 5 Starts rating across 2 reviews.

Valvoline – DEXRON – VI ATF Full Synthetic Automatic Transmission Fluid, 1 Quart (Part No.822405)

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

from

$14.49
Valvoline DEXRON-VI/MERCON LV ATF is a full-synthetic transmission fluid formulated with advanced additive technology to meet and exceed the requirements of the General Motors DEXRON-VI specification. It is officially licensed and approved by GM and is fully back-serviceable and can be used wherever DEXRON-II and/or DEXRON-III are recommended. Recommended for use in the following applications: DEXRON-VI, DEXRON-III, DEXRON-II, and Allison C-4.

Product Features:
  • Formulated with full-synthetic base stocks and advanced additive technology to meet the challenging demands of automatic transmissions
  • Enhanced anti-shudder protection for smooth shifting and maximum power transfer
  • Developed with anti-wear technology to help improve transmission durability
  • Engineered with a proprietary blend of base oils and advanced additives to provide better oil flow at low temperatures and greater film protection at higher temperatures
See More

Top-Quality Differential Bearings for 1977 Buick Opels

Choose a high-quality OEM or aftermarket Differential Bearing for Buick Opels and enjoy top-notch performance from $6.69.

FAG US – Cup (Part No.LM67010)

Cup

from

$6.69
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
See More

Our Top Pick for a 1977 Buick Opel Differential Pinion Seal

Invest in a durable Differential Pinion Seal for your 1977 Buick, knowing you’re getting trusted brands and expert craftsmanship.

Motive Gear – Pinion Seal (Part No.8610)

Pinion Seal

from

$4.99
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.
See More

Our Differential Ring Gear Bolts for 1977 Buick Opels

Make a smart move for your 1977 Buick Opel with our Differential Ring Gear Bolt for $2.99.

Motive Gear – Ring Gear Bolt (Part No.14066913)

Ring Gear Bolt

from

$2.99


Product Features:
  • RING GEAR BOLT 8.5″ 7.5″ 7/16 X 20 LEFT HAND
See More

Top-Rated Differential Brands For Your 1977 Buick Opel

When it comes to finding the perfect Differential for your 1977 Buick Opel, Advance Auto Parts has you covered with a wide selection of high-quality OEM and aftermarket options from 4 trusted brands. We carry the most popular Differential brands including Valvoline, and more, all known for their exceptional customer ratings (average brand rating of 4.8 stars) and competitive prices, as low as $14.49. Purchasing a Differential from us here at Advance Auto Parts is a smart move for both you and your 1977 Buick Opel, providing peace of mind with parts that meet or exceed OEM standards.

Popular Valvoline 1977 Buick Opel Differentials

If you’re looking for a top-quality Differential for your 1977 Buick Opel, Advance Auto Parts has exactly what you need with our selection of Valvoline Differentials. We have 1 Valvoline Differentials in stock for this fitment, all known for their durability and precision fit. With prices starting at just $14.49, you’ll find the perfect Differential for your needs and budget. Valvoline Differentials for the 1977 Buick Opel come highly rated, with over 2 customer reviews and an impressive average rating of 4.8 stars. Choosing a Valvoline Differential from Advance Auto Parts is a smart move to ensure quality and value for your vehicle.
DEXRON - VI ATF Full Synthetic Automatic Transmission Fluid, 1 Quart
from $14.49
(2)
DEXRON – VI ATF Full Synthetic Automatic Transmission Fluid, 1 Quart
“I’ve used this in my 2005 2500HD since I bought the truck with 20k on it now at 280k changed every other year maybe 40k I’d put on in two years, I pu”

FAQs for 1977 Buick Opel Differentials

What are the best-selling Differentials for 1977 Buick Opels?

Out of 21 Differentials that fit 1977 Buick Opels, the following parts are the top sellers:

What’s the price range for 1977 Buick Opel Differentials?

The prices of Differentials for the 1977 Buick Opel range from $2.99 up to $379.99 for the most premium parts.

What is the average price of a Differential for a 1977 Buick Opel?

The average price for Differentials for the 1977 Buick Opel is $173.57. 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 Buick Opel model years?

Yes, we carry Differentials for 2 model years of Buick Opels between 1976 and 1979. The following model years are the most popular for Differential purchases: 1979, 1978, and 1976.

What are the cheapest Differentials for my 1977 Buick Opel?

The cheapest 1977 Buick Opel Differentials we carry are:

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

Yes. We stock Differentials for 7 other popular 1977 Buick models. Some of the most popular are 1977 Regal Differentials, 1977 Century Differentials, 1977 LeSabre Differentials, 1977 Skylark Differentials, and 1977 Riviera Differentials.

What are the top-rated Differentials that fit the 1977 Buick Opel?

The one 1977 Buick Opel Differential we have in stock is the Ring Gear Bolt. It costs $2.99.

What types of Differentials do you sell for my 1977 Buick Opel?

As of 11/2/25, these are some of the most in-demand types of Differentials for a 1977 Buick Opel:

Can I get help with 1977 Buick Opel Differential orders?

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

What is your return policy for Buick Opel Differentials?

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