1966 GMC 1000 Differentials
Keep Your 1966 GMC 1000 in Top Shape with Quality Differentials
Whether you’re repairing or upgrading your Differential, using high-quality parts is key to keeping your 1966 GMC 1000 looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Rear Differential Cover Gaskets, Automatic Transmission Differential Carrier Gaskets, and Bearing Race Drivers. 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 Felpro. For example, Felpro Differentials start at just $7.99 with an average 4.6 star rating. With over 26 reviews and a solid 5 star average, you can shop with confidence knowing other GMC 1000 owners approve.
Competitive Prices and Extensive Inventory
The average price for a 1966 GMC 1000 Differential at Advance Auto Parts is around $398.37, with a range that starts at $7.99 and goes up to $1,566.99. With 4 options in stock from 2 trusted brands, finding the right fit is easy. Popular picks like Differential Carrier Gasket Round Shaped 10 Bolt Hole Gasket and Bearing Race Driver Set, 21 Piece start at just $8.99 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 1966 GMC 1000 in peak condition, inside and out.
Essential 1966 GMC 1000 Differentials
Felpro – Axle Housing Cover Gasket Irregular Shaped 10 Bolt Hole Gasket (Part No.RDS 6629)
from
$7.99
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:
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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
Felpro – Axle Housing Cover Gasket Irregular Shaped 12 Bolt Hole Gasket (Part No.RDS 13391)
from
$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:
See More
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
Yukon Gear – Bearing Race Driver Set, 21 Piece (Part No.56030)
from
$1566.99
21 Piece bearing race driver set. (Box wt: 140lbs) No return.
Product Features:
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Product Features:
- Bearing race driver set
- 21 pieces
- All steel construction
Felpro – Differential Carrier Gasket Round Shaped 10 Bolt Hole Gasket (Part No.RDS 4305)
from
$8.99
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:
See More
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
Popular 1966 GMC 1000 Differentials Categories
Most Popular Rear Differential Cover Gasket for 1966 GMC 1000s
Enhance your 1966 GMC 1000 with this popular Rear Differential Cover Gasket we have in stock, for $9.49.
Felpro – Axle Housing Cover Gasket Irregular Shaped 12 Bolt Hole Gasket (Part No.RDS 13391)
from
$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:
See More
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
Best-Selling 1966 GMC 1000 Automatic Transmission Differential Carrier Gasket
Upgrade your 1000 with our best-selling Automatic Transmission Differential Carrier Gasket.
Felpro – Differential Carrier Gasket Round Shaped 10 Bolt Hole Gasket (Part No.RDS 4305)
from
$8.99
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:
See More
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
Top-Quality Bearing Race Drivers for 1966 GMC 1000s
Choose a high-quality OEM or aftermarket Bearing Race Driver for GMC 1000s and enjoy top-notch performance from $1,566.99.
Yukon Gear – Bearing Race Driver Set, 21 Piece (Part No.56030)
from
$1566.99
21 Piece bearing race driver set. (Box wt: 140lbs) No return.
Product Features:
See More
Product Features:
- Bearing race driver set
- 21 pieces
- All steel construction
Our Top Pick for a 1966 GMC 1000 Rear Housing Cover Gasket
Invest in a
durable Rear Housing Cover Gasket for your 1966 GMC, knowing you’re getting trusted brands and expert craftsmanship.
Felpro – Axle Housing Cover Gasket Irregular Shaped 10 Bolt Hole Gasket (Part No.RDS 6629)
from
$7.99
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:
See More
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
Top-Rated Differential Brands For Your 1966 GMC 1000
When it comes to finding the perfect Differential for your 1966 GMC 1000, Advance Auto Parts has you covered with a wide selection of high-quality OEM and aftermarket options from 2 trusted brands. We carry the most popular Differential brands including Felpro, and more, all known for their exceptional customer ratings (average brand rating of 4.6 stars) and competitive prices, as low as $7.99. Purchasing a Differential from us here at Advance Auto Parts is a smart move for both you and your 1966 GMC 1000, providing peace of mind with parts that meet or exceed OEM standards.
Popular Felpro 1966 GMC 1000 Differentials
If you’re looking for a top-quality Differential for your 1966 GMC 1000, 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 $7.99 and an average cost of $8.74, you’ll find the perfect Differential for your needs and budget. Felpro Differentials for the 1966 GMC 1000 come highly rated, with over 13 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”
FAQs for 1966 GMC 1000 Differentials
What are the best-selling Differentials for 1966 GMC 1000s?
Out of 4 Differentials that fit 1966 GMC 1000s, the following parts are the top sellers:
- Differential Carrier Gasket Round Shaped 10 Bolt Hole Gasket (19780345) – $8.99
- Bearing Race Driver Set, 21 Piece (11642200) – $1,566.99
What’s the price range for 1966 GMC 1000 Differentials?
The prices of Differentials for the 1966 GMC 1000 range from $7.99 up to $1,566.99 for the most premium parts.
What is the average price of a Differential for a 1966 GMC 1000?
The average price for Differentials for the 1966 GMC 1000 is $398.37. 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.
What are the cheapest Differentials for my 1966 GMC 1000?
The cheapest 1966 GMC 1000 Differentials we carry are:
- Axle Housing Cover Gasket Irregular Shaped 10 Bolt Hole Gasket (5185793) – $7.99
- Differential Carrier Gasket Round Shaped 10 Bolt Hole Gasket (19780345) – $8.99
- Axle Housing Cover Gasket Irregular Shaped 12 Bolt Hole Gasket (5783836) – $9.49
- Bearing Race Driver Set, 21 Piece (11642200) – $1,566.99
Does Advance Auto Parts sell Differentials for any other 1966 GMC models?
Yes. We stock Differentials for 20 other popular 1966 GMC models. Some of the most popular are 1966 K15/K1500 Pickup Differentials, 1966 Suburban Differentials, 1966 G1000 Series Differentials, 1966 PB1000 Series Differentials, and 1966 I1500 Differentials.
What are the top-rated Differentials that fit the 1966 GMC 1000?
Based on 26 reviews by customers, our 1966 GMC 1000 Differentials have an average customer rating of 5 stars. These are the highest-rated categories of Differentials for the 1966 GMC 1000 and their top-rated products:
- Rear Differential Cover Gaskets
- Axle Housing Cover Gasket Irregular Shaped 12 Bolt Hole Gasket (5783836) – $9.49
- Rear Housing Cover Gaskets
- Axle Housing Cover Gasket Irregular Shaped 10 Bolt Hole Gasket (5185793) – $7.99
What types of Differentials do you sell for my 1966 GMC 1000?
As of 3/1/26, these are some of the most in-demand types of Differentials for a 1966 GMC 1000:
Can I get help with 1966 GMC 1000 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 1000 Differentials?
Advance Auto Parts keeps returns simple. For new GMC 1000 Differentials and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.