1984 Cadillac DeVille Engine Additives

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Keep Your 1984 Cadillac DeVille in Top Shape with a Quality Engine Additive

When it comes to maintaining or upgrading your 1984 Cadillac DeVille, 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 DeVille. 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 1984 Cadillac DeVille 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 1984 Cadillac DeVille running smoothly and looking great.

Essential 1984 Cadillac DeVille Engine Additives

Motive Gear – Differential Pinion Solid Spacer Kit w/Shims (Part No.4101)

Differential Pinion Solid Spacer Kit w/Shims

from

$53.99


Product Features:
  • GM12 BOLT CAR SOLID SPACER & SHIMS
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Powertrax – Lock Right Locker (Part No.1910-LR)

Lock Right Locker

from

$376.99
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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    Powertrax – Grip LS Traction System (Part No.LS231230)

    Grip LS Traction System

    from

    $480.99
    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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    Powertrax – No-Slip Traction System (Part No.9207752605)

    No-Slip Traction System

    from

    $518.99
    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!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!
  • See More

    Most Popular Posi Units and Component for 1984 Cadillac DeVilles

    Enhance your 1984 Cadillac DeVille with this popular Posi Units and Component we have in stock, for $518.99.

    Powertrax – No-Slip Traction System (Part No.9207752605)

    No-Slip Traction System

    from

    $518.99
    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!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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    FAQs for 1984 Cadillac DeVille Engine Additives

    What’s the price range for 1984 Cadillac DeVille Engine Additives?

    We currently have just one Engine Additives for the 1984 Cadillac DeVille in stock: No-Slip Traction System and it costs $518.99.

    Does Advance Auto Parts sell Engine Additives for other Cadillac DeVille model years?

    Yes, we carry Engine Additives for 6 model years of Cadillac DeVilles between 1977 and 1983. The following model years are the most popular for Engine Additive purchases: 1983, 1982, 1977, 1981, 1980, 1979, and 1978.

    Does Advance Auto Parts sell Engine Additives for any other 1984 Cadillac models?

    Yes. We stock Engine Additives for 1 other popular 1984 Cadillac models. Some of the most popular are 1984 Fleetwood Engine Additives and 1984 Commercial Chassis Engine Additives.

    What types of Engine Additives do you sell for my 1984 Cadillac DeVille?

    We currently have just 1 Engine Additive in stock for a 1984 Cadillac DeVille, and as of 3/1/26, it is a Posi Units and Component.

    Can I get help with 1984 Cadillac DeVille Engine Additive orders?

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

    What is your return policy for Cadillac DeVille Engine Additives?

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