1971 Ford F-100 Engine Additives

Keep Your 1971 Ford F-100 in Top Shape with a Quality Engine Additive

When it comes to maintaining or upgrading your 1971 Ford F-100, choosing high-quality parts is crucial for ensuring your vehicle stays in top shape, whether you’re tackling a repair or enhancing performance. At Advance Auto Parts, we know how important it is to find the right Engine Additive for your F-100. We currently carry a top Engine Additive in stock that is built to last. Whether you’re replacing a damaged Engine Additive or looking to upgrade, our selection for the 1971 Ford F-100 ensures you’ll find exactly what you need to keep your vehicle looking and performing its best.

Explore Related Parts

And while you’re here, don’t forget to check out related part categories like Coolant/Antifreeze and Fluids to complete your upgrade or repair project. At Advance Auto Parts, we’re proud to offer the parts and expertise to keep your 1971 Ford F-100 running smoothly and looking great.

Essential 1971 Ford F-100 Engine Additives

Richmond Gear – Differential Spool (Part No.81-0931-1)

Differential Spool

from

$272.99
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 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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Richmond Gear – Differential Spool (Part No.81-0935-3)

Differential Spool

from

$259.99
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 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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Powertrax – Lock Right Locker (Part No.1810-LR)

Lock Right Locker

from

$339.99
The Powertrax Lock-Right ultra-strength alloy locker’s straight-line performance is equal to a solid spool, but automatically unlocks in turns. Best suited for extreme off-road to severe on-road use, Powertrax Lock Right lockers replace the spider gears in your open differential carrier using basic tools and without affecting your ring and pinion settings. The whole job can be done in your driveway in a couple of hours, pin included! 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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    Yukon Gear – Dropout Housing Stud For Ford 8" & 9" (Part No.32338)

    Dropout Housing Stud For Ford 8" & 9"

    from

    $7.99
    Product Features:
    • Housing stud
    • Fits Ford 8″ and 9″
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    Powertrax – Grip LOK Traction System (Part No.LK109028)

    Grip LOK Traction System

    from

    $668.99
    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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    Most Popular Posi Units and Component for 1971 Ford F-100s

    Enhance your 1971 Ford F-100 with this popular Posi Units and Component we have in stock, for $7.99.

    Yukon Gear – Dropout Housing Stud For Ford 8" & 9" (Part No.32338)

    Dropout Housing Stud For Ford 8" & 9"

    from

    $7.99
    Product Features:
    • Housing stud
    • Fits Ford 8″ and 9″
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    FAQs for 1971 Ford F-100 Engine Additives

    What’s the price range for 1971 Ford F-100 Engine Additives?

    We currently have just one Engine Additives for the 1971 Ford F-100 in stock: Dropout Housing Stud For Ford 8" & 9" and it costs $7.99.

    Does Advance Auto Parts sell Engine Additives for other Ford F-100 model years?

    Yes, we carry Engine Additives for 10 model years of Ford F-100s between 1957 and 1982. The following model years are the most popular for Engine Additive purchases: 1982, 1979, 1978, 1977, 1958, 1957, 1970, 1969, and 1974.

    Does Advance Auto Parts sell Engine Additives for any other 1971 Ford models?

    Yes. We stock Engine Additives for 15 other popular 1971 Ford models. Some of the most popular are 1971 Mustang Engine Additives, 1971 Thunderbird Engine Additives, 1971 Bronco Engine Additives, 1971 LTD Engine Additives, and 1971 Galaxie 500 Engine Additives.

    What types of Engine Additives do you sell for my 1971 Ford F-100?

    We currently have just 1 Engine Additive in stock for a 1971 Ford F-100, and as of 11/2/25, it is a Posi Units and Component.

    Can I get help with 1971 Ford F-100 Engine Additive orders?

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

    What is your return policy for Ford F-100 Engine Additives?

    Advance Auto Parts keeps returns simple. For new Ford F-100 Engine Additives and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.