1946 Chevrolet Fleetmaster Differentials

Keep Your 1946 Chevrolet Fleetmaster in Top Shape with Quality Differentials

Whether you’re repairing or upgrading your Differential, using high-quality parts is key to keeping your 1946 Chevrolet Fleetmaster looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Differential Oil, Automatic Transmission Differential Carrier Gaskets, and Rear Housing Cover Gaskets. 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.

Competitive Prices and Extensive Inventory

The average price for a 1946 Chevrolet Fleetmaster Differential at Advance Auto Parts is around $8.49, with a range that starts at $5.99 and goes up to $11.99. With 3 options in stock from 2 trusted brands, finding the right fit is easy. Popular picks like DEX/MERC ATF Conventional Automatic Transmission Fluid, 1 Quart, Axle Housing Cover Gasket Oval Shaped 10 Bolt Hole Gasket, and Differential Carrier Gasket Oval Shaped 10 Bolt Hole Gasket start at just $5.99 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 Transfer Cases. At Advance Auto Parts, we’re here to help you keep your 1946 Chevrolet Fleetmaster in peak condition, inside and out.

Essential 1946 Chevrolet Fleetmaster Differentials

Felpro – Axle Housing Cover Gasket Oval Shaped 10 Bolt Hole Gasket (Part No.RDS 5007)

Axle Housing Cover Gasket Oval Shaped 10 Bolt Hole Gasket

from

$7.49
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
See More

Felpro – Differential Carrier Gasket Oval Shaped 10 Bolt Hole Gasket (Part No.RDS 5008)

Differential Carrier Gasket Oval Shaped 10 Bolt Hole Gasket

from

$5.99
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
See More

Valvoline – DEX/MERC ATF Conventional Automatic Transmission Fluid, 1 Quart (Part No.798153)

DEX/MERC ATF Conventional Automatic Transmission Fluid, 1 Quart

from

$11.99
Valvoline DEX/MERC ATF is a high-quality transmission fluid formulated to meet the challenging demands of many automatic transmissions. Its responsive low-temperature fluidity is beneficial in both electronic and hydraulic controlled transmissions and transaxles. Recommended for use in the following applications: MERCON*, DEXRON*-III, Ford M2C138-CJ and M2C166-H, Allison C-4 and TES-389, and Caterpillar TO-2.

Product Features:
  • Formulated with premium 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

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

Most Popular Differential Oil for 1946 Chevrolet Fleetmasters

Enhance your 1946 Chevrolet Fleetmaster with this popular Differential Oil we have in stock, for $11.99.

Valvoline – DEX/MERC ATF Conventional Automatic Transmission Fluid, 1 Quart (Part No.798153)

DEX/MERC ATF Conventional Automatic Transmission Fluid, 1 Quart

from

$11.99
Valvoline DEX/MERC ATF is a high-quality transmission fluid formulated to meet the challenging demands of many automatic transmissions. Its responsive low-temperature fluidity is beneficial in both electronic and hydraulic controlled transmissions and transaxles. Recommended for use in the following applications: MERCON*, DEXRON*-III, Ford M2C138-CJ and M2C166-H, Allison C-4 and TES-389, and Caterpillar TO-2.

Product Features:
  • Formulated with premium 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

Best-Selling 1946 Chevrolet Fleetmaster Automatic Transmission Differential Carrier Gasket

Upgrade your Fleetmaster with our best-selling Automatic Transmission Differential Carrier Gasket.

Felpro – Differential Carrier Gasket Oval Shaped 10 Bolt Hole Gasket (Part No.RDS 5008)

Differential Carrier Gasket Oval Shaped 10 Bolt Hole Gasket

from

$5.99
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
See More

Top-Quality Rear Housing Cover Gaskets for 1946 Chevrolet Fleetmasters

Choose a high-quality OEM or aftermarket Rear Housing Cover Gasket for Chevrolet Fleetmasters and enjoy top-notch performance from $7.49.

Felpro – Axle Housing Cover Gasket Oval Shaped 10 Bolt Hole Gasket (Part No.RDS 5007)

Axle Housing Cover Gasket Oval Shaped 10 Bolt Hole Gasket

from

$7.49
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
See More

FAQs for 1946 Chevrolet Fleetmaster Differentials

What are the best-selling Differentials for 1946 Chevrolet Fleetmasters?

Out of 3 Differentials that fit 1946 Chevrolet Fleetmasters, the following parts are the top sellers:

What’s the price range for 1946 Chevrolet Fleetmaster Differentials?

The prices of Differentials for the 1946 Chevrolet Fleetmaster range from $5.99 up to $11.99 for the most premium parts.

What is the average price of a Differential for a 1946 Chevrolet Fleetmaster?

The average price for Differentials for the 1946 Chevrolet Fleetmaster is $8.49. 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 Chevrolet Fleetmaster model years?

Yes, we carry Differentials for 2 model years of Chevrolet Fleetmasters between 1942 and 1948. The following model years are the most popular for Differential purchases: 1948, 1947, and 1942.

What are the cheapest Differentials for my 1946 Chevrolet Fleetmaster?

The cheapest 1946 Chevrolet Fleetmaster Differentials we carry are:

Does Advance Auto Parts sell Differentials for any other 1946 Chevrolet models?

Yes. We stock Differentials for 7 other popular 1946 Chevrolet models. Some of the most popular are 1946 Fleetline Differentials, 1946 Stylemaster Series Differentials, 1946 BK Differentials, 1946 CK Differentials, and 1946 DS Differentials.

What types of Differentials do you sell for my 1946 Chevrolet Fleetmaster?

As of 11/2/25, these are some of the most in-demand types of Differentials for a 1946 Chevrolet Fleetmaster:

Can I get help with 1946 Chevrolet Fleetmaster Differential orders?

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

What is your return policy for Chevrolet Fleetmaster Differentials?

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