1987 GMC S15 Jimmy Engine Additives

Keep Your 1987 GMC S15 Jimmy in Top Shape with a Quality Engine Additive

When it comes to maintaining or upgrading your 1987 GMC S15 Jimmy, 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 S15 Jimmy. 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 1987 GMC S15 Jimmy 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 1987 GMC S15 Jimmy running smoothly and looking great.

Essential 1987 GMC S15 Jimmy Engine Additives

Powertrax – Grip LS Traction System (Part No.LS247528)

Grip LS Traction System

from

$499.99
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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Yukon Gear – Dura Grip Positraction For GM 7.625" With 28 Spline Axles, 3.23 & Up (Part No.26018)

Dura Grip Positraction For GM 7.625" With 28 Spline Axles, 3.23 & Up

from

$829.99
The Yukon Dura Grip provides aggressive yet smooth traction to give you the confidence & performance you need. Get longer life and better traction with the heavy duty Yukon Dura Grip Positraction. The Yukon Dura Grip uses a nodular case and forged 4320 internals for added strength along with composite clutches for high performance and long life. All units are Rebuildable and many offer upgrades to increase aggressiveness for racing applications. Each unit carries a one year warranty against defects.

Product Features:
  • Fits GM 7.625″ with 28 spline axles
  • 3.23 ratio and up only
  • 4-spring, clutch style positraction
  • Internal gears are manufactured using forged 4320 steel and cut to provide stronger teeth
  • Fully rebuildable
  • Assembled in the USA
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ATP – Remanufactured Front Differential Assembly (Part No.111503)

Remanufactured Front Differential Assembly

from

$3289.99
Brand new units are no longer available. ATP’s fully remanufactured differentials offer the best alternative to bench rebuilding or buying used. They are carefully inspected and totally reconditioned to meet original specifications and include new bearings and seals. Our units are ready to install, just add oil.

Product Features:
  • Ready to install, just add oil
  • Totally reconditioned
  • New bearings
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Most Popular Posi Units and Component for 1987 GMC S15 Jimmies

Enhance your 1987 GMC S15 Jimmy with this popular Posi Units and Component we have in stock, for $499.99.

Powertrax – Grip LS Traction System (Part No.LS247528)

Grip LS Traction System

from

$499.99
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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FAQs for 1987 GMC S15 Jimmy Engine Additives

What’s the price range for 1987 GMC S15 Jimmy Engine Additives?

We currently have just one Engine Additives for the 1987 GMC S15 Jimmy in stock: Grip LS Traction System and it costs $499.99.

Does Advance Auto Parts sell Engine Additives for other GMC S15 Jimmy model years?

Yes, we carry Engine Additives for 10 model years of GMC S15 Jimmies between 1983 and 1994. The following model years are the most popular for Engine Additive purchases: 1994, 1993, 1992, 1991, 1990, 1989, 1988, 1986, and 1985.

Does Advance Auto Parts sell Engine Additives for any other 1987 GMC models?

Yes. We stock Engine Additives for 10 other popular 1987 GMC models. Some of the most popular are 1987 Jimmy Engine Additives, 1987 Safari Engine Additives, 1987 G2500 Engine Additives, 1987 G1500 Engine Additives, and 1987 S15 Engine Additives.

What types of Engine Additives do you sell for my 1987 GMC S15 Jimmy?

We currently have just 1 Engine Additive in stock for a 1987 GMC S15 Jimmy, and as of 11/2/25, it is a Posi Units and Component.

Can I get help with 1987 GMC S15 Jimmy Engine Additive orders?

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

What is your return policy for GMC S15 Jimmy Engine Additives?

Advance Auto Parts keeps returns simple. For new GMC S15 Jimmy Engine Additives and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.